Angle grinders are one of the few tools where going cordless genuinely changes how you work, and DEWALT's top tier variable speed model is discounted right now. The 20V MAX XR Brushless 4 1/2 in. to 5 in. Variable Speed Slide Switch Grinder dropped from $289 to $199, which is 31% off. This post contains affiliate links, which means I may earn a small commission if you buy through them—at no extra cost to you. It helps keep the tool deals coming, so thanks for your support!

⚠️ Prices valid at time of posting but are subject to change at anytime.

Grab the DEWALT 20V XR Brushless Grinder for $199

DEWALT 20V MAX XR brushless cordless 4 1/2 in. to 5 in. variable speed slide switch angle grinder DCG411VSB on sale for $199

Final Price Breakdown

Regular price: $289
Sale price: $199
Total savings: $90
Percent off: 31%
Note: Tool only, battery and charger sold separately
Expires: Limited time only

Why This Tool Is Worth It

A grinder is the tool you reach for when something needs to be cut, ground, deburred, polished, or removed and nothing else will do it. Cutting rebar and bolts, grinding welds, removing rust and mill scale, cleaning up metal edges, sanding down welds flat, cutting tile and masonry, and stripping paint all run through this one tool. Going cordless means you can do all of that at the far end of a shop, out at a fence line, or on a trailer without dragging a cord and an extension reel with you.

The variable speed is the feature that separates this from a basic grinder. Running full speed on everything is how you burn material, load up flap discs, and throw sparks where you do not want them. Dialing speed down matters for wire wheeling, polishing, working on thin sheet metal, and using sanding and finishing accessories. Being able to adjust wheel speed to the job means one grinder covers a much wider range of work.

The safety side is worth noting too. The anti rotation system senses excessive rotational motion and shuts the tool down, which is the exact scenario that hurts people when a wheel binds in a cut. On a tool spinning at 9,000 RPM, that is a feature you appreciate the one time you need it.

Since this is a bare tool, it slots into any DEWALT 20V MAX batteries you already own, which is where the value shows up if you are already on the platform.

Features

Part of our most powerful line of 20V MAX angle grinders
Optimize user control: help ensure optimal performance in a variety of materials with variable speed functionality that allows the user to adjust wheel speed
Powerful performance: take on tough jobs with a brushless motor that delivers up to 1,640 MWO and 9,000 RPM (no load)
Help maximize control: equipped with the anti rotation system that senses the rotational motion of the tool and shuts it down if the motion is excessive
Simplify asset management: this TOOL CONNECT chip ready (chip sold separately) TOOL CONNECTs with the TOOL CONNECT site manager app to help you track and manage assets
Wireless tool control system: use the wireless tool control system featuring on/off capability when paired with a compatible DEWALT dust extractor (sold separately)
Part of our best performing line of 20V MAX power tools, innovative power tools designed to deliver certainty for the world's toughest pros

Who This Is Best For

This grinder is aimed at welders, fabricators, metalworkers, mechanics, remodelers, and anyone already running DEWALT 20V MAX batteries. It is also a strong fit for woodworkers who do mixed material work, since a grinder handles everything from cutting hardware and shaping steel bases for furniture to power carving and aggressive shaping with the right accessory.

In terms of the shop it belongs in, a grinder belongs in every shop that touches metal even occasionally. Home garages use one for cutting bolts, rusty hardware, and rebar. Farm and ranch shops lean on them constantly for equipment repair and fence work. Fabrication shops and welders will get the most out of the variable speed, since one tool covers cutting, grinding, and finishing passes. If you only own a corded grinder, adding a cordless one for quick cuts away from an outlet is the upgrade that gets used more than you would expect.

Claim the 31% Off DEWALT XR Grinder Deal

Know someone who is still hauling a corded grinder and an extension cord across the yard? Share this post with them before the price goes back up.

Amazon prices change fast, so we monitor them daily. See our Amazon Tool Deals Hub for the latest lightning sales and limited-time discounts. Be sure to check our curated lists for Lowe's, Home Depot, and Rockler as well.