Keyless Chuck - 0 to 3/8"

The keyless chuck fits shafts 3/8" x 20 and the chuck capacity is 0 to 3/8". It needs no key because it use a spring inside that closes the chuck when you screw it on an abor.

• Jaws are "spring loaded". Turn chuck to open and close, no key needed.
• Knurled hand-grip for easy operating.
• All parts machined from cold-rolled steel. Plated finish.
• True-Running: TIR held to maximum .020 tolerance (non-precision grade).
• Use this chuck with other motor arbors or other shafts that have right-handed male threads.
• By using this chuck with the matching arbor, you can transform an electric motor into a versatile "Power Tool Station". Also a great way to adapt flexible shafts to electric motors.
• Use with your favorite mounted tools: Drill bits, sanders, brushes, router bits, etc.
• 1/4" capacity chuck takes both tool bits with mounting shanks up to 1/4" diameter.
• 1/2" capacity chuck takes both tool bits with mounting shanks up to 1/2" diameter.