Home Products Hand Tools Chuck Keys Chuck Key 1/4-3/8″ Chuck Size 15/64″ Pilot Size Thumb K30 Chuck Key 1/4-3/8″ Chuck Size 15/64″ Pilot Size Thumb K30 (64503) Hardened tempered allow steel chuck key Thumb style handle 1/4-Inch to 3/8-Inch chuck size Find a Retailer Find on Amazon
