A powerful choice for drilling, honing, reaming, and hole sawing, this drill has extra advantages. The reversible motor lets you drive and remove screws too. Even the tightest screws back out with ease under the force of the 1/2 hp motor. Free speed; 400 RPM; rated power: .5 horsepower; average air consumption: 4 cfm; sound dBA: 92.9/105.9; air inlet NPTF: 1/4"; minimum hose size: 3/8"; weight: 3.3 lbs.; length: 8.7".