In one step, you can drill, countersink, and counterbore the perfect sized hole for #4, #6, #8, #10, or #12 screws. Replacement bits are without countersinks.
- Counterbores are 3/8" or 1/2" dia.
- Ideal for plugs or dowel buttons
- 1/4" hex shank can be used with power drills and quick change chucks
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