Description
Get clean, professional results every time with the 9/64″ Adjustable Countersink Drill Bit. Designed for #6 screws in wood and PVC plastic, this bit combines drilling, countersinking, and counterboring into one fast step. With its adjustable set-screw design and 4-edge cutting action, it delivers smooth, precise holes and a flush finish-perfect for fine woodworking, cabinetry, and trim work.





