Our M12 FUEL 1/4″ Straight Die Grinder is designed to replace pneumatic die grinders. The die grinder provides you with up to .3 HP performance to outperform pneumatic die grinders by 20%. The M12 inline die grinder features 3-Mode speed control and a responsive variable-speed trigger giving you unmatched control with your most common accessories. The cordless die grinder provides you with greater access and mobility, eliminating the frustrations of hoses and compressors.