Thumb Score: +8 30% off Drill/Driver: 1/2 in. keyless chuck with a 24-Position clutch that adjusts torque output to control the depth of a screw or fastener Drill/Driver: 2-Speed gear box offers a low speed (0 - 450 RPM) for high torque applications and a high speed (0 - 1,750 RPM) for fast applications with 500 in./lbs.