Dormer High Speed Steel Drill Bit 7mm Shank, 109mm Overall Length, 135° Split-Point A1087.0

Dormer A1087.0 high speed steel drill bit set includes ten 7mm diameter bits with an overall length of 109mm and a drilling length of 69mm. These drill bits are precision engineered from premium tempered HSS steel to provide excellent wear resistance and durability in industrial environments.

The 135° split-point drill design offers high positional accuracy and clean hole quality, making it suitable for demanding machining of stainless steel and ferrous metals. The bits feature five helical flutes redesigned for enhanced stiffness and rapid swarf evacuation, improving operational efficiency.

This drill bit series is compatible with both machine and hand drilling operations and is ideal for materials including austenitic stainless steel, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloys, graphite, and various plastics. They are not recommended for use in masonry.

The set complies with international standards DIN 338 RN, BS 328, and ISO 235, ensuring quality and reliability on the job. The right-hand cutting direction and cylindrical straight shanks facilitate secure mounting and precise cutting performance.

Made from high speed steel for robust cutting and heat tolerance. 5 helical flutes improve chip removal and drilling speed. Split point design for minimal walking and improved accuracy. Suitable for diverse materials including stainless steel and plastics.

Complies with DIN 338 RN, BS 328, ISO 235 certifications. Right-handed cutting direction for efficient drilling. Set contains 10 drill bits each 7mm diameter. Manufactured in Brazil.

This professional drill bit set is essential for industrial, mechanical, manufacturing, and construction applications requiring reliable drilling in metal and composite materials. Browse more Drill Bits and power tool accessories in EnvMart’s Industrial Tools & Equipment category for comprehensive tooling solutions.