Dormer Cobalt Steel Drill Bit 151mm Overall Length 12mm Shank Size A77712.0

Dormer A77712.0 cobalt steel drill bit with an overall length of 151mm and a 12mm straight shank is engineered for demanding drilling applications in hard and superalloy materials. The high-speed steel with cobalt (HSS-E) composition provides exceptional hardness, wear resistance, and durability for long service life.

This drill bit features a bronze finish to improve corrosion resistance and maintain sharpness over time. Its four helical flutes help in efficient chip removal while maintaining hole quality. The 135° drill point angle enhances centering and reduces bit wandering, resulting in superior drilling precision.

The tool is designed for right-hand rotation, compatible with a wide range of standard drilling machines. It meets applicable DIN 338 mechanical standards, ensuring consistent performance and reliability in industrial and workshop environments.

Weighing just 100.2 grams, it offers comfortable handling and control for prolonged use. This Drill Bit is ideal for use in construction sites, carpentry workshops, and machine building, providing precise bored holes in tough materials.

Durable cobalt steel construction for heavy-duty tasks. 151mm overall length enables deep drilling operations. 12mm cylindrical straight shank with corrosion-resistant bronze finish. Four helical flutes for effective chip evacuation.

135° split point angle for improved centering and accuracy. Meets DIN 338 standards. Lightweight design promotes ease of use. Suitable for industrial, construction, and machine-building applications. Explore our wide range of Dormer drilling tools and accessories on EnvMart for your industrial and mechanical tool needs.