The Milwaukee Tool M18 FUEL Braking Die Grinder with Slide Switch, No. 2939-20, is designed to deliver 11A corded power and the ability to remove up to 12" of weld bead using one M18 Redlithium XC5.0 battery. Equipped with RAPIDSTOP technology, the die grinder provides braking in under two seconds for enhanced safety. Its Powerstate brushless motor delivers 27,000 rpm, allowing users to maintain grinding power while in tight spaces. Additionally, the cordless braking die grinder is compatible with 2" accessories and features the spindle lock design for one tool accessory change.