1/2 Reversing Chuck 48-66-1381

This keyed chuck has a 1/2 inch capacity with a 5/8 inch - 16 thread. Use with chuck key 48-66-3280 and key holder 48-66-4040. The metal construction provides heavy-duty durability while the keyed design ensures the bit retention needed for high-torque applications. It can be used on reversing drills of matching capacities and threaded spindles. If your drill's bit retention is suffering, the rotation feels stiff, or the chuck has seized up entirely, a new chuck should fix the problem.