Pistol style air drill for easy operation that is suitable for both left and right handed useSimple to use with a thumb switch lever for switching between forward and reverse. Free Speed: 1,800 rpmQuick change chuck mechanism for easier changing of drill bits. Chuck Size: 10mmErgonomically designed handle for better grip. Total Length: 8.12 inchesComposite grip protects and insulates against vibration and cold air. Vibration: 2.73 m/s squared. Sound Level: 87.6 dB.