Bestgle 3pcs 1/4 Inch Shank Countersink Drill Bit Set, 5 Flute 90° Chamfering Cutter, High Carbon Steel Chamfer Tapered Bits for Woodworking & Metalworking, 12mm 16mm 19mm

• Countersink Drill Bit Set: Includes 3 countersink drill bits in 12mm (1/2"), 16mm (5/8"), and 19mm (3/4") with a 1/4 inch hex shank, suitable for woodworking and metalworking projects.
• Durable High Carbon Steel Chamfer Bits: Made of industrial-grade high carbon steel, these chamfer drill bits are strong, wear-resistant, and built for long service life without deformation.
• Quick Change Hex Shank Design: The 1/4 inch hex shank countersink bit allows fast replacement and is compatible with most power drills, impact drivers, and rotary tools.
• 5 Flute Chamfer Cutter for Smooth Cutting: Designed with 5 flutes and staggered cutting teeth, these chamfering cutters ensure free chip flow, reduced vibration, and efficient cutting.
• Versatile Chamfer Drill Bit Set: Perfect for wood openings, reaming, chamfering, and screw head sinking, these tapered drill bits work on soft metal, wood, rubber, and plastic.

Specification: Material: High Carbon Steel Shank Diameter: 1/4inch Hex Shank Surface Treatment: Blackening Treatment Heat treatment: high frequency quenching, improve hardness How to Use: Step 1: Drill a pilot hole the width of your screw. Step 2: Select an appropriate width of the countersink drill bit head to create a hole. Step 3: The top of the screw is perfectly flat with the surface. Kindly Note: ▶The most important thing to keep in mind when using a countersink is to match the size correctly to the screw being used. ▶Please do not use these chamfer drill bits on the high hardness metal material. Package Included: 3 x Chamfer Countersink Drill Bits (12mm/16mm/19mm)