1/2″ Magnum Drill, 0-850 RPM. Outperforms all other 1/2″ drills in its category. The 1/2″ Magnum Drill has the power and construction to deliver long-lasting performance. The all-metal gear case and diaphragm provide high durability on the jobsite. The ergonomic, textured grip and two-finger trigger optimize user comfort and balance.