Dormer Cobalt Steel 4mm Diameter High-Speed Steel Twist Drill Bit Set 75mm Overall Length 10 Pieces A7774.0

Dormer A7774.0 cobalt steel 10-piece drill bit set features 4mm diameter high-speed steel twist drill bits with 75mm overall length and bronze finish. This set is engineered for precision metal cutting, ideal for professionals in automation, electrical, mechanical, and electronics industries seeking high-quality drilling solutions.

The drill bits have a helical flute design with four flutes for optimal chip removal and enhanced cutting efficiency. The drill point angle of 135° provides accurate hole making in metal surfaces such as stainless steel and aluminium. The right-hand cutting direction suits a wide range of drilling machinery and applications.

This set includes 10 cylindrical shank drill bits, finished in bronze for corrosion resistance and durability. With a drilling length of 43mm, these bits offer versatility across various project requirements. All bits conform to DIN 338 standards, ensuring reliable performance under industrial conditions.

While primarily intended for metal work, these drill bits are also suitable for occasional use on wood materials, making them adaptable for diverse workshop needs. Professionals, hobbyists, and DIY enthusiasts can trust this set for accurate and efficient drilling operations.

Made from cobalt steel for durable and long-lasting use. 10 pieces of high-quality drill bits included in the set. 4mm diameter with a 75mm overall length and 43mm drilling length. Helical flute type with 4 flutes for fast and clean drilling.

135° drill point angle optimized for metal cutting. Right-hand cutting direction compatible with standard drills. Bronze finish for enhanced corrosion resistance. Conforms to DIN 338 quality standard. Suitable for stainless steel, aluminium, and metal alloys.

Ideal for mechanical, electrical, automation, and electronics applications.

This Dormer Drill Bit Set supports professional-grade drilling tasks in industrial, manufacturing, and laboratory environments, delivering precision and reliability. Available for purchase from EnvMart's drill bit category, trusted for quality and performance.