Stall resistant design makes sure this heavy duty air drill won't get held up when the drilling gets tough. High torque, ball bearing motor with hardened reduction gears provides smooth operation and long life. Heat treated components for durability and reliability. Fully reversible with an infinitely progressive throttled trigger control. Eastwood's reversible air drill is designed, built and tested to match the quality and features of national brands, but at an affordable price that tells you it's another smart Eastwood value. 1/4 inch FNPT. Final product imported.