The Kobalt 24 Volt Die Grinder has a brushless motor that provides 25,000 RPMs. The small diameter handle and body is designed to allow it to be used in tight places. The soft start feature allows you to keep complete control of the tool from the moment you push the trigger.The Kobalt 24 volt high efficiency brushless motor generates a maximum no load speed of 25,000 RPM 3 Speed settings RPM Soft start allows user to control the cut from start to finish Tool has 1/4 inch collet Built in LED pre light and afterglow provide added light to work in darker spaces Compatible with all Kobalt 24 volt max batteries. New in box.