This keyed chuck has a 1/2 in. capacity with a 1/2 in. to 20 thread and comes with chuck key 48 to 66 - 2110. It can be used on reversing drills of matching capacities and threaded spindles.

• 1/2 in. capacity, keyed chuck
• 1/2 in., 20 thread
• Chuck key included
• Easy replacement