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5-piece countersink set for screw sizes #4, #6, #8, #10, and #12Drill the correct pilot hole and recess for countersinking a screw all in one step
Adjustable four-cutter counterbore for fast, smooth cuts in all types of wood and plastic
Loosen to adjust the depth for variable length screws
Drills tapered to match the profile of traditional woodworking screws