Dormer Cobalt Steel Drill Bit 6.5mm Shank Size, 101mm Overall Length, 63mm Drilling Length, 4 Flutes Helical, Bronze A7776.5

Dormer A7776.5 is a professional grade cobalt steel drill bit set comprising 10 pieces, each with an overall length of 101 mm and a drilling length of 63 mm. Manufactured using high-speed cobalt steel (HSCo), these drill bits provide excellent toughness and heat resistance, suitable for drilling through higher tensile and tougher materials.

The drill bits feature 4 helical flutes engineered to efficiently remove chips from the hole during drilling, improving cutting performance and reducing wear. Each bit has a bronze surface treatment finish for added corrosion resistance and durability against abrasive materials. The shank is cylindrical and straight with a diameter of 6.5 mm, compatible with a wide variety of power and hand drills.

The drill point angle is precisely sized at 135°, designed to facilitate accurate centering and stable drilling with a cutting direction to the right, suitable for typical machining operations. These bits comply with DIN 338 standards for jobber drill bits, ensuring consistent quality and dimensional accuracy.

This set of 10 pieces is ideal for use in multiple industrial environments including mechanical workshops, construction sites, manufacturing, and maintenance operations where reliable drilling tools are essential.

High-speed cobalt steel material for enhanced hardness and durability. Four helical flutes for efficient chip evacuation. Bronze finish surface treatment for corrosion protection. Cylindrical straight shank of 6.5 mm diameter for widespread drill compatibility.

Right-hand spiral cutting direction for precise drilling action. 135° drill point angle for optimized cutting and hole starting. Compliant with DIN 338 jobber drill standards for quality assurance. Overall length 101 mm for deep drilling tasks.

Contains 10 drill bits in the set for bulk usage.

This Dormer cobalt steel drill bit set offers dependable performance for drilling tougher materials and is widely used across industrial, mechanical, and construction applications. Explore more premium power tool accessories and Drill Bits at EnvMart to complete your toolkit.