Cordless Angle Grinder

A cordless angle grinder gives you freedom to cut, grind, and polish anywhere, with no cords and no limits. 

At ArcCaptain, we’ve built our collection for makers, welders, and professionals who need power that moves with them. 

Whether you are cutting metal pipes, smoothing weld seams, or polishing surfaces, our cordless grinders deliver the strength, precision, and control you can count on.

Power That Keeps Up With You

When you are working on tough materials, you need more than convenience, you need strength. 

Our 20V Max brushless motor delivers up to 9500 RPM for steady, high‑performance grinding and cutting. The brushless design means less heat, longer motor life, and consistent power for every job.

• ✅ High‑efficiency 20V Max brushless motor
• ✅ Up to 9500 RPM for heavy‑duty tasks
• ✅ Stable performance and extended tool life

From metal fabrication to construction work, this cordless grinder gives you the torque and speed to get the job done right.

Fast‑Charging Freedom

No one likes waiting for batteries to charge. This cordless angle grinder includes two 4000 mAh lithium batteries and a 20V/2A quick charger. 

Designed with a Makita‑style 18V/20V battery interface, it fits smoothly into your existing setup and keeps you powered up all day.

• ✅ Dual 4000 mAh batteries for long runtime
• ✅ Fast‑charging 20V/2A system
• ✅ Compatible with Makita‑style battery platform

Whether you are in the shop or on site, you will spend more time working and less time charging.

Precision Control for Every Task

Every job is different, and your grinder should adapt to it. With 3‑speed variable control (3300 / 6500 / 9500 RPM), you can fine‑tune your speed for cutting, grinding, or polishing. 

This flexibility makes it perfect for both heavy‑duty metalwork and detailed finishing.

• ✅ Adjustable 3‑speed settings
• ✅ Smooth transitions between tasks
• ✅ Ideal for metal, masonry, and wood projects

Built for Comfort and Control

Long hours on the job demand a tool that is easy to handle. The dual‑side adjustable handle supports both left‑ and right‑handed use, while the anti‑vibration design reduces fatigue. 

With a lightweight body of about 3.1 lbs without battery and an electronic brake that stops the wheel in about 2 to 3 seconds, you will work safer and smarter.

• ✅ Dual‑position handle for comfort
• ✅ Electronic brake for quick, safe stops
• ✅ Aluminum gear housing for durability

Versatility That Works Anywhere

Our cordless angle grinder supports 4‑1/2‑inch and 5‑inch discs, giving you flexibility across a wide range of applications. 

The adjustable guard and up to 180° adjustable head make it easy to adapt to any angle or workspace.

Perfect for:

• ✅ Cutting steel bars, iron pipes, and metal sheets
• ✅ Smoothing weld seams and cleaning slag
• ✅ Cutting tiles, bricks, and concrete
• ✅ Shaping wood and removing paint or rust

Gear Up With ArcCaptain Essentials

Pair your cordless angle grinder with other high‑quality ArcCaptain gear to build your ultimate setup. 

Explore More ArcCaptain Tools:

• ✅ Welder Equipment – Reliable machines for every welding job.
• ✅ Best Welding Gloves – Heat‑resistant gloves for safety and comfort.
• ✅ Auto‑Darkening Welding Helmets – Stay protected and see clearly while you work.
• ✅ Light Welding Machines – Compact powerhouses built for performance and portability.

ArcCaptain offers premium welding machines, accessories, and safety gear designed for professionals who take pride in their craft.

FAQs on Cordless Angle Grinder

What is better, a corded or cordless angle grinder?

Corded grinders provide nonstop power, while cordless models offer freedom to move. For portability and convenience, cordless grinders are ideal. If you need continuous power for long hours, choose a corded grinder.

Can a cordless angle grinder cut metal?

Yes, a cordless angle grinder can cut metal easily when you use a metal‑cutting disc. It is great for trimming steel bars, bolts, and pipes. Always wear proper safety gear while cutting.

How do I choose a cordless angle grinder?

Look for a strong motor of at least 20V Max, multiple speed settings, and a comfortable grip. Battery life and compatibility with your current tools are key. Safety features like an electronic brake are also important.

Which is better, a 4‑inch or 5‑inch angle grinder?

A 4‑inch grinder is lighter and easier to handle for small jobs. A 5‑inch grinder cuts deeper and covers more area, making it better for heavy‑duty work. Choose based on the size and type of projects you do most often.