RS PRO Industrial Grade HSS 4 mm Drill Bit with 250 mm Overall Length, Helical Flute, Plain Shank, 118° Point Angle 522-6651

RS PRO 522-6651 is an industrial grade metric extra length twist drill bit constructed from super high speed steel (HSS). This drill bit offers a 4 mm drill bit size with an overall length of 250 mm, designed for demanding metalworking and industrial applications.

The drill bit incorporates a 118° point angle which provides precise and effective drilling with minimal walking and enhanced penetration. The helical flute design facilitates efficient chip removal, ensuring smoother drilling in metals, plastics, and composite materials. Its plain shank type enables easy mounting and secure fitment in most standard drill chucks.

Designed with a right hand cutting direction, this drill bit performs optimally on a range of materials including wood, plastic/composites, mild and cast steels (both alloy and non-alloy), grey cast iron, tempered castings, sintered materials, graphite, and nodular iron. Its robust construction allows drilling through hardened steels and special alloys with ease.

Manufactured to meet international standards BS 328, DIN 340, RN, and ISO, RS PRO ensures reliable performance and durability in industrial, mechanical, and manufacturing environments. This product is made in China and is suitable for use in metal fabrication, construction, maintenance, and repair operations.

Made from super high speed steel for excellent heat resistance. 118° drill point angle for accurate drilling. Helical flute design for efficient chip removal. Plain shank with 4 mm diameter for secure chuck fit. Right hand cutting direction for standard drilling.

Complies with BS 328, DIN 340, RN, and ISO standards. Ideal for metals, plastics, composites, and cast irons. Manufactured in China under RS PRO quality assurance. Explore the RS PRO range on EnvMart for high-quality industrial Drill Bits and accessories trusted by engineers and technicians worldwide.