Irwin Tools 1877714 Countersink Drill Bit, 1/4-Inch, Black Oxide

Five flute design reduces vibration for smoother drilling and extended life

Five flute design reduces vibration for smoother drilling and extended life

Tapered drill with widened flutes for drilling fast, clean pilot holes and ensures tight fit for screws

Durable design.

Tapered drill with widened flutes for drilling fast, clean pilot holes and ensures tight fit for screws

Manufactured from high quality HSS steel

3in1 Countersink Drill Bit Set Enable you to Drill, Countersink and Counterbore in one step, ideal woodworking tools for setting screws flush with or below the surface of a material

Durable Materials With their construction and durable classic carbon steel materials, these drill bits offer exceptional longevity and performance

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

Tapered drill with widened flutes for drilling fast, clean pilot holes and ensures tight fit for screws

VERSATILITY Bosch hex shank countersink bits feature adjustable depths and provide precise, clean pilot holes in wood, plastic and composite materials

Adjustable and Versatile The 3in1 Woodworking Counterbore Hole Saw Drill Bits set features a standard 1 4 inch hex shank for quick change. An adjustable counter sleeve depth can be easily adjusted with the provided Allen wrench; enables flush screw heads or deeper holes to be covered with matching plugs for professional finish.

High Quality Crafted from premium 4241 high-speed steel, our woodworking countersink drill ensures high hardness and exceptional wear resistance for superior cutting performance and chip removal. It remains still sharp even with frequent use, effortlessly coping with various wood drilling requirements

Wide Application Ideal for use on wooden planks, fiberboard, particle board, plywood, plastic, aluminum board, and more, providing versatility for various DIY and professional projects.

Countersink Drill Bit This comprehensive drill bit set includes 12 pieces, With 5pcs woodworking drill bits, a wrench, 6pcs five-flutes chambering, offering a wide range of options for your drilling needs. Perfect for woodworking, crafting projects.

Three cutting spurs for faster, cleaner holes, less breakout and extended drilling life

Material Each drill bit in the countersink drill bit set is made of high quality M35 high speed steel material with excellent heat, corrosion and rust resistance, as well as great cutting power for clean, flat and efficient cuts.Compared with ordinary styles of steel, M35 high-speed steel is harder, more heat-resistant, more durable, and more efficient. It is a super-hard high-speed steel material.

User-Friendly for Beginners Detailed instructions and included sizes make this set suitable for both professionals and hobbyists. Achieve professional-grade results in home renovations or craft projects.

VERSATILE The Wood drill bits are Suitable for home or professional woodworking project, used on wood, plastic, PVC, fiberboard, plywood, rubber and more. In order to avoid slipping or eccentricity when drilling, it is recommended to use a table drill or fixed drill.

Set includes 1 4" (6.3mm), 3 8" (9.5mm), 1 2" (12.7mm), 5 8" (15.8mm), 3 4" (19.0mm), 7 8" (22.2mm), 1" (25.4mm), 1-3 8" (34.9mm) forstner bits