1/2 in. Heavy-Duty Reversible Air DrillThis is a Reversible Air Drill. It has a 1 2 in. chuck. It has a teasing throttle for precise control. Handle exhaust reduces noise and directs air away from operator and workplace Needle bearing gearing for improved durability Oil free operation Applications: heavy drilling, reaming, hole sawing and jobs requiring a lot of torque Comfortable grip Drill is considered super duty Features Item Weight 4. 3 Compressor Air Tool Features Reversible