Best Cordless Angle Grinder Top 7 Under $200. Cordless grinder with battery

Work With Ease and Comfort With the Best Cordless Angle Grinder

When most workshop guys think about grinders, they picture the hand-held angle grinder. This multifunctional power tool can be used for many tasks, including cutting iron tubing to repair a damaged valve, carving wood to make furniture, tile cutting for a backsplash, and cleaning grout between tiles.

With technological advancement, professional power tool usage is rapidly shifting to cordless power, and as a result, cordless angle grinders are becoming more popular. The ability to work autonomously from a steady power source is highly desirable. It means you aren’t bound to wires or power cords and can readily access difficult-to-reach workplaces. Whether working with wood, metal, or stone, an angle grinder wheel will make your life significantly easier.

If you are ready to add this versatile tool to your toolbox, we have reviewed and compiled a list of quality cordless angle grinders for 2023 to help you get the desired results.

Finding Your Next Cordless Angle Grinder: A Buyer’s Guide

When it comes to purchasing a cordless angle grinder, everyone has different requirements. Some people prefer their grinders to be as strong as possible for heavy-duty work, while others prefer them to be ergonomic and comfortable to work for extended periods. You will need to consider these things to determine which grinder is ideal for you. So, here are some features of a cordless angle grinder and how they affect performance.

Disc size

Angle grinders are available in various sizes, each identified by a number representing the largest diameter of grinding disc or wheel that it can manage. A 4, 4.5, or 5-inch disc will work for the majority. Since bigger discs might be cumbersome or time-consuming, smaller sizes and weights are preferable for DIY projects.

In industrial settings, professionals typically utilize larger discs (up to nine inches) when cutting through thick chunks of material. Discs larger in diameter require grinders that can withstand greater cutting forces. This means you’ll use a heavier tool that’ll wear on your hands faster than a compact angle grinder.


The rpm of an angle grinder is the standard for describing its speed (rpm). Some powerful grinders can reach speeds of 12,000 rpm, while most operate at a lower range of 5,000 to 10,000 rpm. But, the rpm number is under “no-load” conditions, which means the disc is not grinding or cutting anything but is simply spinning in the air. When the disc starts cutting or grinding, the speed drops dramatically.

A higher rpm indicates that the tool is capable can cute material with greater ease and speed, but there is an increased risk of injury due to the disc’s potential to rupture as it heats up at faster speeds. Pay attention to the disc’s maximum supported speed and use the appropriate disc for the job. For instance, if you run a disc that is only supposed to withstand 7,500 rpm at a quicker speed, it may shatter and send pieces of the grinder wheel flying.


The power output potential of angle grinders is measured in volts (V) and amperes (A) (amps). The power of a cordless angle grinder’s battery is measured in volts. Most cordless models have 18-volt or 20-volt batteries, but some have 7.5-volt or even 24-volt batteries. Most cordless power tools have a “magic number” of 18 to 20 volts, which is the best mix of price and usefulness.


The angle grinder’s guard is a very important safety feature covering half of the disc. Its job is to protect the user’s hands by stopping sparks and other debris from flying at them. It also keeps surfaces from getting damaged when working in tight spaces.

The guards on some angle grinders are movable, whereas, on others, it is permanently attached. The adjustable model is preferable because it can shield the user from projectiles in either direction and is useable with either hand. But, if the bolts aren’t secured, a removable guard could come loose. In contrast to removable guards, fixed guards are more secure and won’t fall off using a grinder.

Soft start

Angle grinders might recoil slightly on starting up because they are quick, strong tools. This is especially true if the wheel is big and heavy. The motor’s recoil can cause the angle grinder to jump in the user’s hands, leading to possible serious injury. Soft-start technology decreases the output power to the motor initially, gradually rising until the grinder is fully operational. This power regulation reduces the jolt to the user’s arms and wrists and keeps the grinder from recoiling during start-up, improving safety.

Best Cordless Angle Grinder Top 7 [Under 200]

Looking for the best cordless angle grinder under 200 bucks? We’ve got you covered! The good ole’ angle grinder is one of the most versatile handheld tools you can have in the garage. Can’t do without one, right?!

Of course, you don’t want to be spending a king’s ransom to get an angle grinder, so our list only includes cordless grinders under 200 bucks. Our top 3 are in the comparison table below – we’re still using the Milwaukee grinder two years later – it keeps on going strong!

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Best Cordless Angle Grinder Comparison Table

Our Best Cordless Angle Grinder Top 7

  • Best Angle Grinder Overall: Milwaukee 2780-20 M18 Fuel
  • Best Lightweight Angle Grinder: DeWALT DCG413B 20V Brushless Angle Grinder
  • Best Angle Grinder for Budget: Makita XAG04Z 18V Angle Grinder
  • Milwaukee 2680-20 M18 18V 4 1/2″ Cordless Angle Grinder
  • KIMO 20V Brushless Cordless Angle Grinder
  • Bosch GWS-45 18V 4-1/2″ Angle Grinder
  • Skil 20V 4-1/2″ Angle Grinder

Best Cordless Angle Grinder In-Depth Reviews

Best Cordless Angle Grinder Overall: Milwaukee 2780-20 M18 Fuel

This best cordless angle grinder puts emphasis on power and longevity!

This is our personal favorite. We use it in a mining environment on giant drills, diggers, and other huge earthmoving equipment. It never misses a beat. It’s not pretty and red anymore but this thing just hooks in and gets the job done!

Definitely our best angle grinder of all!

It has a brushless motor that delivers maximum power and can have a 10 times longer motor life than a conventional corded grinder.

You will be glad to know that this angle grinder isn’t huge or bulky as it only weighs 5.8 pounds. It measures 2.3 x 12.9 x 7.6 inches.

This tool features Redlink Plus, which is an advanced system of cordless power tool electronics.

It has a standard clutch and overload protection so that communication between tool, battery, and charger all receive the same message.

What is also nice about this best angle grinder is that you can make all accessory changes and guard adjustments on this grinder without using tools like a wrench for assistance.

Best Lightweight Angle Grinder: DeWALT DCG413B 20V MAX Brushless Cut Off Tool/Grinder

DeWALT’s best cordless angle grinder provides a seamless performance that many other grinders can’t offer. Its brushless motor can deliver up to 57% more runtime than a brushed motor, and there is no load speed to speak of with this grinder.

Delivering an impressive maximum of 9,000 RPMs when in use, this grinder can complete tasks quickly.

Very lightweight at 3.75 pounds, the 4 ½-inch wheel diameter of the grinder covers a good amount of space for a grinding project.

This grinder features a paddle switch where the brake will activate once this switch is released. This will quickly stop the grinding wheel, which is a big plus.

This best angle grinder also has a long 2-position side handle, giving you additional comfort and convenience.

Best Angle Grinder for Budget: Makita XAG04Z 18V LXT Cut-Off/Angle Grinder

What you will discover from Makita’s best cordless angle grinder right away is that the battery is charged by an LXT Rapid Optimum Charger, which provides up to 3 times faster charging than the standard best angle grinder battery charger.

Running on a Lithium-Ion battery it has as much as 50% more run time compared to the standard Makita 18 volt battery.

The brushless motor this guy has can have up to a 50% longer lifespan than the regular Makita cordless motors.

The Automatic Speed Change technology that Makita’s grinder possesses can automatically adjust the speed and torque while in operation.

It has a lock-on side switch, a rubber soft grip for comfort, and a 3-stage LED light gauge that tells you how much charge the battery has.

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This best angle grinder’s brushless motor that delivers 8,500 RPM is sure to suit your needs if you want something done quick.

Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder

By far the lightest best cordless angle grinder on this list, this 3.8-pound wonder of a grinder delivers immense power and speed. Delivering a maximum of 10,000 RPM, this angle grinder gives you the control you need to perform even the most complicated DIY project.

It has a rubber-textured handle and a 3-position plastic handle that allows you to hold the grinder in almost any way you would like.

Adjusting the wheel guard of this angle grinder gives this tool an edge. With an adjusted wheel guard, various objects that require different cutting angles can be accommodated.

Let’s not forget about the paddle switch, which makes activating Milwaukee’s best angle grinder easy. Even if you wear thick work gloves, the paddle switch will detect you pressing it.

I like it when power tools act Smart, don’t you?

KIMO 20V Brushless Cordless Angle Grinder

When you have a power tool that can function in more than one way, you have a keeper in that tool. KIMO has a nice presentation in this best cordless angle grinder as you will be getting 5 cutting wheels and 5 grinding wheels each.

This angle grinder is designed to cut and grind materials such as steel, wood, stone, and tile. Its maximum power of 9,000 RPM makes for a speedy grinding session.

I consider the optimized cooling system to be a clever feature of this grinder. Allowing fresh outside air to cool down the device, the brushless motor is encouraged to generate less friction and heating while in use. This means you get better performance and a longer runtime out of this best angle grinder.

KIMO’s Rapid charger for this grinder’s Lithium-Ion battery is amazing as it will charge an empty battery as quickly as 60 minutes!

Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder

Easily portable at a weight of 4 pounds, Bosch’s best cordless angle grinder has an outstanding four-brush motor design that allows users to properly perform their duties while also giving them maneuverability.

This grinder delivers a maximum of 10,000 RPM while in use, allowing you to perform an activity quickly when you need to. This device features a 2-position Vibration Control side handle, which reduces user fatigue and makes for a smoother grinding experience.

When you buy this best angle grinder, you will only get one wheel guard, one grinding disc, and one side handle. Depending on how often you plan on using this grinder, this may or may not be a problem.

The bright side is that it has a 3-year tool protection plan and a 2-year free battery replacement plan.

The wheel guard can be like a jigsaw puzzle piece. It is installed backward and once it is pushed all the way on, it will rotate to any angle you desire.

Skil 20V 4-1/2 Inch Angle Grinder

You will get a powerful multi-faceted tool with this best cordless angle grinder. Cutting tile, grinding metal, sanding, polishing, and sharpening are all tasks that can be done with this grinder.

Its PWRCore 20 Lithium battery is a specially patented battery that has advanced technology which features each cell being wrapped with cooling material.

Because of this, the grinder can operate for up to 25% longer run times, and its battery lifespan will be doubled.

Milwaukee fuel m18 grinder problem

This grinder also has a 3-position side handle, giving you flexibility in how to use the tool. Its dual function lock-on switch comes in handy as well, as it prevents any accidental start-ups from happening, and will lock on for extensive use.

Skil created a cordless angle grinder that goes fast, delivering a maximum of 8,500 RPM in motor speed which helps you complete tasks.

Best Angle Grinder Buyer’s Guide

An angle grinder is normally not one of the first power tools you turn to when you need to perform a task for DIY purposes, so this buyer’s guide is a refresher course on what to expect from the best cordless angle grinder.

For starters, we will not be answering any silly questions like “Is an angle grinder just like a chainsaw?” because the answer to that question is obvious.

What Is An Angle Grinder?

Also referred to as a cut off tool or a side or disc grinder, an angle grinder is a power tool you can use for many jobs. Grinding, cutting, and polishing different kinds of metallic and concrete materials make up the primary functions of an angle grinder.

Sometimes included on angle grinders are adjustable guards and side-handles for easier operation. With the help of a special sanding disc, some best angle grinders can also be used as sanders.

Putting it in plain terms, an angle grinder is an essential tool to have depending on the DIY projects you wish to take on. If you have sheets of metal laying around in your garage and you want to make backyard ornaments out of them, then that is the time to give the best angle grinder a call.

Are Angle Grinder Discs Interchangeable?

Here is a word of caution to remember; if a manufacturer doesn’t specifically note a certain type of blade that can be used for its grinder, chances are likely that the grinder doesn’t support that blade.

Now, you could play around with a grinder and make adjustments to bolt a blade into place, but I would not recommend doing that because of safety reasons.

Can I Use a 4-inch Blade on a 4.5-Inch Angle Grinder?

The tooling of both 4-inch and 4.5-inch angle grinder blades is not interchangeable, at least not in the sense that it will be useful for you.

Most 4.5-inch blades won’t fit on a 4-inch best cordless angle grinder, and even if some do, it will likely run too fast and stop working after a period of time. You will have a better time fitting 4-inch blades on 4.5-inch grinders as those often work, but those blades are too small to function the way you want them to.

How Do I Change the Blade on My Best Cordless Angle Grinder?

Changing the blade on your best cordless angle grinder only takes a few steps.

  • The first step is to remove the battery from your cordless grinder. Never skip this first step because otherwise, you will always run the risk of accidentally turning the grinder on while removing the blade.
  • The second step is to take a screwdriver and remove the blade guard. By doing this first you will have an easier time removing the blade itself. Not all angle grinders are the same in design, so take note of how all parts of your grinder are held together.
  • Press and hold in the blade lock button of the grinder for the next step. While this button is being held, turn the grinder upside down so that the grinding wheel faces up.
  • Use your free hand to turn the wheel. If the wheel won’t turn, then it is locked.
  • If the wheel turns then press and hold in the blade lock button again.
  • Steps four through six involve you using a wrench to turn the arbor nut counterclockwise, using a vise grip to loosen the arbor nut, and then finally lifting off the old grinding blade after the arbor nut is removed. To break this down in one sense, it is like fixing a broken wheel on a bicycle.
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What Are the Different Types of Blades for Angle Grinders?

A single type of blade cannot perform every single kind of job that you want it to when using an angle grinder.

In some senses, you have to treat an angle grinder like a Swiss Army Knife (hey, you could read up on the best Swiss Army knives while you’re here!). When a certain task calls for a certain type of blade, you switch to that blade.

Grinding Blade

First, we have the grinding blade. This is the most common angle grinder blade used at home but it is used minimally in construction jobs.

The grinding blade is one of the thickest blades, conforming to the thickness of materials like metal. The grinding blade is often used for metal fabrication and welding to smooth out the rough edges that come out of a welding session.

Flap Blade

The flap blade is very similar to that of the grinding blade, with the only addition to this blade being the sandpaper on the bottom of the flange. If you are in that mode of sanding materials, this sandpaper attachment is ideal.

In case you lose a grinding blade, the flap blade can work just as well during any grinding procedure.

Cutting Blade

Compared to the grinding blade and the flap blade, the cutting blade is very thin. You use a cutting blade when you cut through thick materials like metal because of the power and pressure that angle grinders normally provide.

Because of the thin layer, the cutting blade relieves the user from using much force. You can also use the cutting blade for grinding, and it can smooth over rough edges of a material if you need it to.

Diamond Blade

Diamond blades have rigged grooves on the outside edges. The diamond blade is designed to be used on ultra-thick surfaces like stone, concrete, and marble tile for masonry work. The grooves are designed to catch the resistance of the angle grinder against thick materials that may be reluctant to cooperate.

Wire Wheel

Last but not least is the wire wheel, which is made out of either stainless or carbon steel. It is used to clean off material before you start a welding session. Metal surfaces will be smoothed out by the small wires that make up this blade.

Can a Wood Blade Be Put On an Angle Grinder?

Many angle grinders are simply not designed to handle tasks related to cutting wood.

Unless you buy an angle grinder like the one KIMO provides, you can’t just force a grinder to act as a wood cutting tool. Angle grinder blades are mainly meant to cut and grind thick materials due to the intensity of the pressure.

Though, saying that, you might get lucky enough to find cutting discs to cut wood that fit your grinder! Check these out:

There are other power tools out there that can safely and efficiently cut wood. With the exception of the KIMO grinder, most angle grinders are too powerful to properly cut wood.

How Often Should I Clean My Grinder?

It is important to take good care of your power tools! Any tools that are allowed to get dirty and gather rust are tools that become unreliable after a long period of time.

The same thing applies to the best cordless angle grinder.

How often you should clean your angle grinder depends on how often you plan on using it. How many DIY projects do you have lined up for a week that require the use of an angle grinder?

In general, you should clean your angle grinder right after you use it. At the very minimum, you should clean it twice a week especially if you will use it frequently throughout the week.

  • Editor’s note: This is sound advice… But we never clean our tools and if you get a quality tool like the Milwaukee grinder, I don’t reckon you need to. Ours is covered in grease and all sorts of gunk and it’s going strong, even after all these years

Are Angle Grinders Safe?

Angle grinders are generally safe power tools, but they can become dangerous if you are not careful with them.

They generate sparks, and whenever you begin work with one make sure your work area is clear of any debris and flammable materials. Areas that have grain dust or combustible dust accumulation should be avoided.

If you intend to offer a professional service that involves an angle grinder, there are safety precautions you will need to take. You have to use the correct wheel for the size and speed of the grinder.

Before using an angle grinder, it must be checked for cracks, defects, and wear. Any discs that are worn must be replaced.

Let the grinder reach full speed and warm up before you use it and let it make a full stop after you are done using it. Common sense moves such as these are mentioned in OSHA’s document on angle grinder safety.

Do Volts and Amps Matter?

No, they really don’t matter.

Now here is the long answer. The amount of volts a tool has is only mentioned on battery-powered tools.

amps will either mean more power (in other words, power you get out of the wall equals volts multiplied by amps), or a less efficient motor (power out of the wall that just generates heat isn’t useful).

Since we’re discussing cordless grinders only, volts and amps are really irrelevant.

A grinder with more volts and amps does not make it a better grinder than others.

You should aim to buy a grinder that draws at least 5 to 9 amps so that it can handle all the various types of wheels and accessories. However, you should consider how fast an angle grinder operates and how safe it is before focusing on its power.

So, What’s the Best Grinder Then?

Breaking everything down, if you had to choose right away which best angle grinder to buy, I would recommend you get the Milwaukee 2780-20 M18 Fuel grinder first.

It isn’t the cheapest grinder on this list, but it is the safest, most durable, and most flexible grinder of them all.

Overall, you can’t go wrong with any of these listed grinders as they are all well under 200 in price, which will make your wallet happy!


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The power packs: Powerful like 1,500 watt mains-powered tools.

Brake: In an emergency the disc stops within a matter of seconds.

  • After releasing the deadman switch, the machine switches off immediately and the electronic brake stops the disc within 1.5 seconds.

The power packs: the safest in their class.

Anti-vibration system: Less vibrations. longer application times.

The Auto-balancer compensates unbalances for cutting and grinding discs. The Metabo VibraTech (MVT) side handle reduces the vibrations additionally

The power packs: the safest in their class.

Safety clutch: Minimal kickback. Maximum control.

  • Thanks to the combination of the mechanical Metabo S-automatic safety clutch and the electronic safety shutdown, the kickback is reduced to the lowest level on the market.

The power packs: the safest in their class.

Restart protection: Soft and safe startup.

  • The restart protection prevents that the machine that has not yet been switched on starts up again, e.g. after inserting a new battery pack.

The power packs: the safest in their class.

  • The tool safety equipment can be attached to the DS fixture, and thus the machine can be caught when falling from a great height.

The power packs: the safest in their class.

Cordless Angle: Grinder Explanation Product name

Cordless angle grinder: Autobalancer

Cordless angle grinder: Mechanical safety clutch S-automatic

Cordless angle grinder: Fall protection

Cordless angle grinder: restart protection

Cordless angle grinder: Fast brake

Cordless Angle Grinders

Cordless cutting and grinding up to 230 mm diameter

All over the world, professionals from trade and industry rely on Metabo cordless angle grinders. The battery-powered grinders have become vital in everyday work. Independent from the power grid, they can be used anywhere. Thanks to modern battery pack technology the deliver full power like a mains-powered tool. The entire range of diameters is available: 76 mm, 125 mm, 150 mm, 180 mm and even 230 mm! The large 230 mm cordless angle grinder is the world’s first cordless tool in this class. It is available in 2 versions: One runs with a 36 V battery pack, the other one with the same power and with two 18 V battery packs that can also be used in all other 18 V machines. 77 mm cutting depth and powerful material removal when grinding speak for themselves. Its 2400 watt power is in no way inferior to the mains-powered angle grinders.

A 180 mm battery angle grinder with brushless motor brings it to a comparable cutting depth as a large mesh angle grinder. However, it is significantly lighter and thus, for example, ideal for cutting operations on the roof.

Maximum power with perfect handling

The slim design of the brushless cordless angle grinders up to 180 mm wheel diameter makes the devices particularly handy. This permits low-fatigue working also in narrow components or overhead. Equipped with the quick system, the cutting and grinding discs can be replaced at the touch of a button without tools. Just like the guard: it can be adjusted without tools and is absolutely twist-proof. If needed, the battery pack can be rotated according to the work situation. For cutting and grinding with cordless angle grinders we recommend using LiHD battery packs. Maximum cell energy guarantee long runtimes at constantly highest performance. This means that less charging breaks are required and the working objective is reached faster.

Corded v Cordless Angle Grinders Dyno’d! Milwaukee vs Harbor Freight

With Metabo cordless angle grinders on the safe side

Working with angle grinder is not without danger, this is a fact. With our safety functions we would like to prevent and permit safe working. Often accidents are caused by loss of control, this is our starting point. For models with paddle switch and dead man function (P in the designation), the cordless angle grinder is switched off immediately after releasing the switch. If an additional braking system is integrated (B in the designation), the disc stops within 2 seconds after switching off. When the disc jams the kickback torque can hit the user with full force. This kickback is reduced extremely thanks to the electronic safety shutdown. Further safety functions are an integrated restart protection against unintentional starting and the soft start for smooth start-up.

Angle grinders are following in the footsteps of many traditional power tools in cutting the cord and moving to battery technology.

Many users are embracing the freedom of cordless machines, being able to work anywhere without the need for potentially hazardous and awkward extension cords.

Whilst battery life and power are still significant barriers to some users, battery technology is rapidly improving and cordless machines are increasingly coming up to speed with their corded counterparts.

What is a cordless angle grinder?

Cordless angle grinders are hand-held battery operated tools used in a wide range of industries. These versatile machines can be found in a vast array of applications, from metal fabrication, plumbing, trade, DIY and many more. Powered by inter-changeable and re-chargeable batteries, cordless grinders mostly come in 115 and 125mm sizes, with maximum speeds of up to 9,000 rpm.

Why choose a cordless grinder?

Powered by re-chargeable battery packs, cordless grinders give the user more freedom and mobility, however these advantages are weighed against limited performance and usage life. If you’re using a grinder for long periods at a time, cordless machines probably aren’t the right choice for you. If, however, you’re working in remote areas, multiple sites, or just have a quick job to do; a cordless machine will offer you both freedom and practicality.

What’s the difference between a cordless and electric grinder?

Depending on your abrasive choice and application, an electric grinder will give you consistent and continuous use and is especially suited for heavyy duty applications.

Choosing the right abrasive and good quality batteries is crucial to getting the most out of your cordless grinder. Using specially recommened abrasive products will help prolong battery life and get the best results in your application.

Why battery choice is important

Choosing the right battery for your cordless tool and usage requirements is crucial to getting the most out of your investment. Battery technology is rapidly advancing, becoming more suitably equipped for the heavy demands of an angle grinder. There are three types of battery available, depending on your needs:

Nickle Cadmium (NiCd)

These are entry-level batteries, and are generally the least expensive option. They tend to have a long cycle life, however they are also heavy and have a lower capacity than other batteries for cordless tools.

Nickle Metal Hydride (NiMH)

MiMH batteries are the next step up from Nickle Cadmium, offering increased capacity (running for 2 – 3 times longer per charge). However, NiMH batteries are far more sensitive to temperature, which can be an issue as grinding operations generate a lot of heat and can damage or hinder the battery’s performance.

Lithium Ion (Li-Ion)

These are the best choice in the market for your cordless machine – they are the most light-weight option and have the highest output capacity. Whilst Lithium Ion batteries are more expensive than their Nickle-based alternatives, they are far superior in power, performance and durability.

It’s important to bear in mind that a cordless angle grinder will have different power and battery requirements to other cordless tools. For example, compared to a standard cordless drill the torque required to turn an abrasive wheel at 9,000 RPM is far greater than the twisting force necessary to turn a drill bit. Only with the introduction of Lithium Ion batteries have cordless grinders really come into the market as a serious alternative to electric angle grinders.

Which abrasives should I use?

The key to getting the most out of your battery operated tool is to make sure you choose the right abrasive for the job. With many years’ experience, the team at Norton have selected the best products to make the most of your cordless machine – giving you more power, more speed and more accuracy.

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Our latest Guide will help you select the best abrasive product for your cordless grinder, whatever application, process or material you’re working on. Handy product recommendations are provided for the most common process steps.

Each product in the range has been tried and tested by our application experts and sorted into three main benefit groups. Whether you’re out all day and want to make your battery last as long as possible, or you need to get the job done quickly, we’ve got a product for you. With a handy pictogram guide, each product in this new brochure will help you get the most out of every application:

Battery saving

Get the most out of your charge, with products carefully selected and tested to extend the runtime on your cordless right angle grinder.

Get more for your money, with a selection of abrasives for your battery machine chosen for their long life.

Fast Action

Work faster not harder, with our selected abrasives proven to get the job done quickly in any battery-powered grinding process.

Meet Norton European Application Engineer Paul Gray

Paul is an application engineer with over 20 years’ experience and one of our abrasives experts at Norton. With a background in mechanical engineering, Paul has a wealth of knowledge in abrasives and their day to day use.

When he’s not jet-setting in the name of Norton, bringing his expertise to countries all over Europe, Paul can be found renovating houses, playing bass guitar in his Band and spending time with his family.

Here, Paul answers some of the most common questions asked about abrasives and cordless grinders:

Can I use mini angle grinder discs on my standard cordless machine?

Yes, you can. Use an adaptor to adjust the standard mini quick change back up pad to fit your machine. Thanks to their small size and less power needed from the machine, the mini discs extend battery life considerably.

Will a corded grinder ever replace my corded tool?

It really depends on your usage requirements – if you regularly use your corded tool in heavy applications, the answer is probably no, but that doesn’t mean that a battery grinder won’t be of any use to you. It might not be your go-to machine, but it will always come in handy

​How long should I expect my grinder to last between charges?

This depends on the type of work you’re doing with it – if you’re continuously grinding heavy material, then your battery won’t last very long (also depending on the type size of battery you have), but if you’re doing lighter work, using recommended discs and letting the battery cool between uses, then you’ll get much more life per charge.

Can I use a disc rated at 12,250 rpm on my grinder that runs at 9,000?

Yes – running a disc at a lower speed than its maximum capacity is perfectly safe (never go over a disc’s maximum rated RPM). Look for products with a cordless icon to see if they’re recommended for performance on a battery-operated angle grinder.

Why are Aluminium Oxide grains better than ceramic for some products?

Ceramic grains are high-performance options for high-powered machines –they require a large amount of heat and force to break down, release old dull grains and re-sharpen. Battery Powered right angle grinders run at lower speeds and generate less heat and force. Therefore, you need a more friable grain with a weaker bond structure, like aluminium oxide to stay sharp and get a quick effective result.

Do I need more than one battery for my Cordless grinder?

Ideally yes – it’s always a good idea to have a back-up charged and ready to go so you don’t get caught short on a job.

For more information about Norton’s abrasive solutions for cordless angle grinders, take a look at the Norton Guide, or contact your local Norton representative.

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