3pcs 1/4" Hex HCS Chamfering Cutter 5 Flute Drill Bits for Chamfering Countersink Countersink 12mm/16mm/19mm For Wood Metal

Use: Ideal for drilling 90-degree holes in wood and soft metals. Countersunk screws and fasteners. With a 6.35mm shank diameter and a 20mm length, they can be used with an electric drill or battery. Unique Process: High-quality, non-slip, wear-resistant design ensures increased comfort and convenience. Surface treatment: blackening treatment. Size: Commonly used sizes include 12mm, 16mm, and 19mm, all with 1/4" hex quick-change shanks. Angle: 90 degrees. Five-flute chamfer conical cutter. Heat treatment: high-frequency hardening increases hardness. Durable: High-quality, high-carbon steel, durable and rustproof, long service life. Specification: Material: HSS Quantity: 3 Pcs Shank: 6.35mm (1/4") Size: Approx. 12 mm x 43 mm, 16 mm x 45 mm, 19 mm x 49 mm Surface Treatment: Blackening Treatment Heat Treatment: High-frequency quenching, improves hardness Applicable Scope: Suitable for chamfering wood, plastic, etc. Features: Suitable for all woods and aluminum 1/4" quick-change hex shank Suitable for all hand and power drills Heat-treated carbon steel blades ensure a long service life Ideal for creating holes in wood boards, fiberboard, particleboard, plywood, plastic, aluminum panels, etc. Universally applicable, deburring and flush trimming without chatter, suitable for DIY, home, and general construction development Ideal for drilling 90-degree holes in wood and soft metals in preparation for countersunk screws and fasteners The set includes all commonly used sizes, including 12 mm, 16 mm and 19 mm, all with 1/4" hex quick-change shanks for easy quick change with a 1/4" quick-release chuck system