Simultaneously countersink or counterbore screw pilot holes
- Four piece set includes bits for drilling pilot holes for screw sizes #6, #8, #10, and #12
- Special designed steel counter sleeve countersinks or counterbores pilot hole
- Adjustable counter sleeve depth with allen wrench
- Standard 1/4-Inch hex shank is quick change compatible
- TiN coated brad point pilot drill bits (#6 bit is not brad point)
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