Drill, Jon Bhandari Chucks are made to secure drill bits in position as the drill machine rotates them. Additionally, they hold the heads of bits and tools on rotary hammers and machines. More torque may be obtained with the use of the internal Chuck or Manual key. Turn your hex shank driver into a drill quickly. Easy bit changes with a finger-tightening keyless chuck. Unrestricted usage in all drill machines and rotary machines, including automobiles, garages, warehouses, offices, and homes.