1/4 Chuck 48-66-0070

This keyed chuck has a 1/4 inch capacity with a 3/8 inch - 24 thread. Use with chuck key 48-66-3200 and key holder 48-66-4080. The keyed design gives this chuck superior bit retention for high-torque applications while the rigid all-metal structure gives it the durability and wear-resistance for constant use. It can be used on reversing drills of matching capacities and threaded spindles. If your drill is suffering from poor bit retention or stiff rotation, or if the chuck has seized up entirely, replacing your chuck should fix the problem.