PTI HSS Drill and Countersink Bits
Ideal for drilling and countersinking in wood to give a flush surface when screw inserted or can be counterbored for use with wood plugs or wood filler to hide screw head.
Drills a pilot hole, clearance hole and countersink in one operation
Adjustable pilot drill for different length screws and can produce a counterbored hole for wood plugs.
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