RS PRO Countersink HSS Drill Bit 20.5 mm Head Diameter, 3 Flutes, 90° Angle, 63 mm Length 673-8710

RS PRO 673-8710 Countersink HSS Drill Bit features a high-speed steel (HSS) construction delivering excellent hardness and resistance against wear. It has a 20.5 mm head diameter with a 90° countersink angle, designed specifically to prepare precise recessed holes for countersunk screws.

The drill bit length totals 63 mm, including a 42 mm shank length designed to securely fit in standard drill chucks. Three flutes run along the shaft to minimize vibration, offering increased control, accuracy, and a superior finish quality during low-speed drilling operations.

Its hexagonal end enables efficient cutting and removal of surface material, creating smooth craters that fully embed countersunk screws flush with the workpiece surface. This feature helps to avoid screw head protrusions and ensures professional, aesthetic finishes.

This drill bit is suitable for use in industrial manufacturing, mechanical workshops, and precision engineering tasks where countersinking is essential. It efficiently eliminates burr distortions from pre-drilled holes, improving assembly quality and strength.

The product is manufactured in China and supplied as a single piece, meeting the needs of professionals requiring dependable and precise drill accessories. Constructed from high-speed steel (HSS) for strength and durability.

Three flutes reduce vibrations for smooth and precise cuts. 20.5 mm head diameter with a 90° countersink angle. 63 mm overall length with 10 mm shank diameter and 42 mm shank length. Designed to create clean countersunk holes for screw embedding.

Ideal for precision drilling and burr removal in industrial applications. Ensures steady operation at slower speeds for exact results. Single-piece product suitable for professional use in workshops. Explore more in our comprehensive selection of Drill Bits and parts on EnvMart for reliable industrial and mechanical tooling solutions.