Dormer Cobalt Steel Drill Bit, 4.5mm Shank Size, 80mm Overall Length, 135° Point Angle, 10 Pieces A7774.5

Dormer A7774.5 cobalt steel drill bit set comprises 10 pieces with 4.5mm shank size and an 80mm overall length, engineered for professional mechanical and power tool applications.

These drill bits feature a robust cobalt steel construction, providing excellent hardness and heat resistance, making them ideal for drilling tougher and higher tensile materials in industrial settings.

The 4 flutes are helically designed to efficiently remove chips, reducing heat generation and enhancing drilling speed while maintaining precision. The bronze surface treatment contributes to increased corrosion resistance and improved durability under repetitive use.

Each drill bit has a 135° point angle designed for efficient cutting and smoother hole entry, with a right-hand spiral cutting direction suitable for conventional drilling tasks. Compliant with DIN 338 standards, these bits assure consistent quality and dimensional accuracy.

The cylindrical/straight shank design ensures easy and secure fitting in standard drill chucks. Drilling length of 47mm enables precise depth control, enhancing drilling safety and consistency. Manufactured in France, this set is tailored to industrial, mechanical, laboratory, manufacturing, and construction environments requiring high-performance drilling tools.

Constructed from durable cobalt steel material for higher tensile strength. Features 4 helical flutes for efficient chip removal. Bronze surface treatment provides corrosion resistance and durability. 135° drill point angle ensures precise and effective drilling.

Right-hand spiral cutting direction suitable for standard drilling tasks. Complies with DIN 338 standards for quality assurance. Shank type is cylindrical/straight for compatibility with various chuck types. Drilling length is 47mm, offering controlled penetration depth.

Set contains 10 high-performance drill bits suitable for tougher materials. Manufactured in France to ensure premium quality. Explore the complete Dormer drill bits range and related accessories on EnvMart for top-quality industrial tools and solutions.

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