20 V MAX XR Li-ion Cordless motor that delivers superior performance and maximum run time. The Li-ion battery with fuel gauge provides percent more capacity over standard packs. The drive is safety by quickly stopping the motor speed. When used for automotive applications, Bolt Auto Stop Mode prevents over-tightening, breaking, or stripping of lug nuts while Bolt Removal Mode stops the tool when it senses the lug nut is loosened. Vibration suppression isolates the 3/4-inch impact wrench and user from vibration for more comfortable extended use, and three speed modes plus a variable speed trigger allow easy control of RPMs to adapt to different materials.