Grooved hex shank prevents slipping in drill chuck or bit extension, fits all standard quick change chucks. Includes one of each 3/8 in, 1/2 in, 5/8 in, 3/4 in, 7/8 in and 1 in. All are 6 in long standard length drill bits.
Manufacturer: IRWIN Model Number: 88886 UPC: 024721200600
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