3/8" Keyless-Chuck

Reduces bit changeover time and eliminates lost keys. 25\ greater gripping power than standard keyed chucks. Durable nonrusting, easy-grip elastomeric body. For use on corded and cordless drills. Carded.No. 30353: Chuck capacity of 1/16" to 3/8", thread: 3/8-24No. 31037: Chuck capacity of 1/16" to 1/2", converts 3/8"-24 thread drill to 1/2"No. 31038: Chuck capacity of 5/64" to 1/2", thread: 1/2-20