Matco now offers their MT1827 1/2" Heavy Duty Reversible Air Drill with Side Handle that has: Jacobs" Industrial grade keyed 1/2" chuck. A built-in Matco comfort grip. Variable speed throttle for maximum versatility. Double full cage gearing for added torque and power. Spring loaded rotor vanes to ensure full torque at lower rpm speeds. Convenient reverse lever for easy operation. The side handle mounts to either side for extra stability.