5-Piece Countersink Drill Bit Set with Adjustable Depth Stop

This 5-piece countersink drill bit set provides adjustable depth control and precise 82-degree chamfering for standard screw installation across diverse workpieces. Each tool utilizes a standard 1/4-inch hex shank for direct mounting on conventional power drills. 1. Constructed from high-speed steel (M2) with spiral chip flutes and sharpened cutting edges for consistent material removal. 2. Contains five tapered bits featuring drill diameters of 1/8, 9/64, 5/32, 11/64, and 3/16 inch, combined with 3/8 and 1/2 inch 82-degree counterbores. 3. Equipped with a threaded depth stop assembly that regulates drilling and countersinking penetration levels, adjusted with the included wrench and shielded by a plastic collar to minimize surface marks. 4. Compatible with natural wood, plywood, MDF, chipboard, drywall, decking, and various plastic panels when operated at low speeds near 200 RPM. 5. Supplied as a single blue-colored package containing the five tapered bits and their integrated depth stop mechanism.