Description
Heat treated tool steel countersink with a HSS drill. Adjustable for different length screws and can produce a 9.5mm (3/8 inch) diameter counterbored hole for woodplugs. The drill produce pilot holes only. D=3/8 inch D=9.5 mm D2=7/64 inch D2=2.75 mm Shank Diameter=1/4 inch hex Screw size S/W=No.8 H/W=No.6