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.    2.0mm HSS pilot drill size 5 gauge (3.0mm) screw