1/2" Chuck Super Duty Reversible Air Drill includes: Chuck size: 1/2"; spindle size: 3/8-24; free speed: 500 RPM; average air consumption: 7.5 cfm; air inlet thread: 1/4" NPTF; minimum hose size: 3/8"; sound dBA: 96. Teasing throttle for precise control. Handle exhaust reduces noise and directs air away from operator and workplace. Needle bearing gearing for improved durability andoil free operation. Applications: heavy drilling, reaming, hole sawing and jobs requiring a lot of torque.We ship APO, FPO and combine shipping.