Features Main shaft, gears and bearings are accurately matched, the rotation is stable, the torsion is strong, and the life is long. The body has its own speed control and forward and reverse functions, convenient operation and high work efficiency. The movement is made of selected advanced steel, precise processed by advanced CNC machine tools. With alloy hardened reduction gear, stable and wear resistant, strong torsion output. Powerful power, lightweight body, forward and reverse adjustment, 360 degree exhaust, good hand feeling, strong bearing design. Specification:Item Type: Pneumatic Drill Material: Alloy Steel Model: KP-550 Chuck Size: 3/8 Inch Clamping Capacity: 1.5-10mm Free Speed: 2000rpm Working Pressure: 0.6-0.8MPA Inlet Connector: 1/4 Inch Package List:1 x Pneumatic Drill1 x Wrench1 x User Manual1 x Connector Package List 1 x Pneumatic Drill 1 x Wrench 1 x User Manual 1 x Connector