SP Air offers the SP-7520 3/8" Compact Composite Drill with low-speed (500 rpm) and high torque, making this tool great for spot welding. This durable, compact, lightweight air drill features a reversible, variable speed trigger. The Side And Side (SAS) system allows users to switch from forward/reverse with one-hand operation. Other features include a double gear mechanism and air exhaust with muffler.