Countersink Drill Bit, Tapered, 9/16 in, 3-5/8 in Overall Length, 1-1/4 in Flute Length, 1/4 in Shank Diameter, Quick-Change Shank, #6 Screw, High Speed Steel, Cut Materials: Wood This item replaces product number 121584
- Tapered drill with widened flutes for drilling fast, clean pilot holes
- Adjustable four-cutter counterbore cuts and clears chips quicker for fast, smooth countersinking
- Counterbore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth
- 1/4 in quick-change shank reduces slipping in standard chucks and is compatible with all 1/4 in quick-change chucks, including impact drills
- Adjustable stop collar attaches to counterbore with two hex screws for a secure fit and can be adjusted for desired counterbore depth (Included in sets only)
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