1/2" Heavy Duty Reversible Air Drill The Ingersoll Rand Heavy-Duty 1/2 Reversible Air Drill is the economical choice for power, high quality drill designed for drilling, hole sawing, cylinder honing and jobs that calls for a 1/2 size. Its quality features long life, an industrial grade 1/2 chuck, ball and needle bearing construction and double reduction planetary gearing. Industrial-grade 1/2 chuck can handle the abuse from the toughest application. Reversible motor backs out tight screws or fasteners quickly and assists when binding occurs while drilling. Variable speed throttle allow greater control from start to finish. Double-reduction planetary gear equals more power at lower speeds. Auxiliary side handle extra provide overall tool control. Aluminum housing provides light weight and superior durability 7803RA Yes - SILICA, CRYSTALLINE (AIRBORNE PARTICLES OF RESPIRABLE SIZE)