Dormer Cobalt Steel Drill Bits, 125mm Overall Length, 9mm Shank Diameter, 10 Pieces A7779.0

Dormer A7779.0 cobalt steel drill bits are professional-grade tooling designed for use in industrial, mechanical, and manufacturing environments requiring tough, precise drilling. The set includes 10 drill bits, each with a 125mm overall length and a 9mm cylindrical shank, ensuring compatibility with common drill machines.

Constructed from high-speed cobalt steel (HSCo), these drill bits provide superior toughness and heat resistance when drilling high tensile and hard materials. The bronze surface treatment further enhances corrosion resistance, extending tool life.

Each bit features a 135° drill point angle designed for accurate centering and reduced walking, and 4 helical flutes enable efficient chip evacuation for smoother, faster drilling.

The cylindrical/straight shank design allows for secure, stable holding in drill chucks. With a drilling length of 81mm and right-hand cutting direction, these bits are versatile for many drilling tasks.

Manufactured to conform with DIN 338 standards, these drill bits are well-suited for mechanical, manufacturing, and fluid power industries requiring precise metalworking tools. The pack of 10 ensures sufficient tooling for both workshops and production environments.

Made from durable cobalt steel material ensuring high wear resistance. Each drill bit has a 135° drill point angle for precision drilling. Bronze surface finish provides enhanced corrosion resistance. Features 4 helical flutes for efficient chip removal and smooth drilling.

Cylindrical/straight shank type suitable for standard drill chucks. Drilling length of 81mm optimizes depth capacity. Right-hand cutting direction for conventional drilling operations. Conforms to DIN 338 standards for high-quality performance.

Pack contains 10 drill bits ideal for industrial and manufacturing applications. Country of origin is France, assuring quality craftsmanship. Explore more professional Drill Bits and power tool accessories at EnvMart to equip your industrial operations with reliable, precision tooling.