Description: This countersink drill bits set helps toreduces the risk of splitting the panel, giving every screw nail or bolt a niceappearance as it appears on the furniture's surface, and can be covered nicelywith wooden plugs. Features:Taper drills have more gripping power thanstandard drills. Pre-drills for wood screws and makes readyholes with perfect tapers ever time. The adjustable stop collars can be adjustedup and down. Drill bit can be adjusted to the desireddrilling depth. This set is perfect for many popular woodscrew sizes. Specifications: Condition: 100% Brand New Material: High Speed Steel 4241 Drill Bit,45# Steel Black Parts Shank Diameter: 1/8in, 9/64in, 5/32in, 11/64in,3/16in, 13/64in, 7/32in Other Size: As Picture Shown Weight: Approx. 166g Package Included: 7 * Drilled Taper Countersink Bits with HexKey