Kobalt Angle Grinders: Models, Specs, and Pricing

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Kobalt makes a cordless angle grinder on the 24V MAX platform, available exclusively at Lowe's. The KAG 524B-03 is a 4-1/2-inch model that competes with Craftsman on price while offering slightly more power from the 24V platform.

Kobalt 24V MAX Platform

Runs on Kobalt 24V MAX batteries. The 24V platform provides slightly more power per charge than 18V competitors at this price point.

Current Models

Kobalt KAG 524B-03

KAG 524B-03

Cordless 24V brushless grinder. Slide switch, no electric brake. Higher RPM than most budget competitors.

disc 4-1/2"
rpm 9,000
switch Slide
weight 4.4 lbs
$59 bare Lowe's

Frequently Asked Questions

Does the higher voltage actually help?

Marginally. The KAG 524B-03 hits 9,000 RPM versus 8,500 for the Craftsman and Ryobi at the same price. In practice, you won't feel the difference on most grinding tasks. The voltage advantage shows up more on sustained cuts through thick metal.

Why no electric brake at $59?

Cost. Electric brakes add components and raise the price. At the $59 price point, no brand includes one. You get electric brakes at $89+ (Ridgid) and $129+ (DeWalt, Milwaukee). If you use a grinder frequently, the brake is worth paying for.

Specs come from manufacturer data sheets. Prices were verified at Home Depot, Lowe's, and Amazon in April 2026. We don't run a testing lab. All claims trace back to publicly available data. Full methodology.