DKIBBITH Countersink Drill Bits - 7 Pack

3 in 1 Combination – Our units combine Drill Bit / Countersink / Counterbore in one tool, with which you can get perfect hole for #4 #6 #8 #10 #12 #14 or #16 screws in one step 82 Degrees Countersink 3/8” Counterbore Bits - You can either have the head of the screw fit flush with the surface, or below the surface then conceal it with matching wood plugs; ideal tool for dowel buttons or plugs. Adjustable Cutting Depth – the sharp M2 Pilot Hole Drill Bit is detachable, so you can adjust the drill depth according to the length of your screw; then tighten it with the hex key (included) to the Countersink / Counterbore sleeve Wide Range – Built with 1/4" hex shank to fit most quick-change chuck machines or power drills; Package Includes 7 pieces of M2 Screw Drill/Countersink/Counterbore bits in sizes 5/64”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32” and 3/16” Multi Purposes - The drill bits perform well in softwood or hardwood and serve the needs of most woodworkers; for softwood, we highly recommend to use a drill bit one size smaller than the screw size