Keyless Chuck for fast and easy bit changes. Use this economical, high quality 3/8" drill for all your general purpose drilling, honing, reaming, and hole sawing. With its reversible 1/2 hp motor, you can also drive and remove screws, including backing out tight screws without a struggle. Reversible motor with a quick reverse lever. Variable speed throttle for starting holes easily. Handles smoothly, a lightweight, compact drill. Specifications: Free Speed: 2,000 rpm Chuck Size: 3/8" (10 mm) Rated Power: .5 hp (.38 kW) Net Weight: 2.5 lbs. (1.13 kg) Overall Length: 6.4" (163 mm) Avg. Air Consumption: 4 cfm Air Consumption @ load: 26 cfm Sound (pressure/power): 84/105.8 dBA Air Inlet: 1/4" Minimum Hose Size: 3/8" (10 mm)