Quick-Change 5-Pc. Countersink Drill Bit Set with Case.#5, 6, 8, 10, 12 Screws
[Size Specifications]: countersunk holes and countersunk holes are suitable for #5, #6, #8, #10, or #12 screws with ideal-size holes.
[Instructions]: The lively tool ink hole will drill a pilot hole in one step, and screw in the screw hole or counterbore. Use the s hole to drive the head of the screw to be flush with or slightly below the surface.
[Ideal for plug or pin buttons]: The 1/4-inch hex shank can be used with power drills and quick change chucks. Perfect for abrasive materials and hardwoods.
[Material]: The material is made of high-quality alloy steel, which is more durable than conventional products.
[Packing]: Includes 5 gold screw countersunk holes: