The Mac Tools 1/4" Medium 90 degree Air Die Grinder, No. AG52AH90, features a 0.3 hp motor and precision collet for accurate material removal. An improved throttle with lockout allows for better control, while the comfort rubber grip keeps the user’s hand isolated, as the unit gets cold from use. The handle features tool-free power adjustments to quickly adjust the speed, and a 360-degree rotating exhaust allows the user to deflect exhaust away from your body or material. This full line of pneumatic die grinders includes six different units to choose from, as well as two power options (0.3 hp and 0.5 hp motors).