Max XR, 20V, Lithium Ion, 4-1/2" Cordless Brushless Paddle Switch Small Angle Grinder With Kickback Brake, Tool Only, No Battery Or Charger Included, Brushless Motor Requires No Brush Changes, Brake Stops Wheel In 2 Seconds Or Less On Average, Kickback Brake Engages When A P", Stall, Or Bind Up Event Is Sensed & The Electronic Brake Engages With Maximum Force To Quickly Stop The Wheel, Reduce The Movement Of The Grinder & Shut The Grinder Off, Anti Wobble Hitch Pin, 2 Stage Trigger Requires 2 Actions To Activate Tool, Ideal For Metal Grinding & Cutting, Ideal For Cutting Bricks/Pavers & Concrete.