Cobalt construction: Delivers high red hardness and wear resistance for extended tool life
135 degree split point: Provides self-centering and reduces thrust for faster, more accurate drilling
Gold oxide finish: Enhances durability and chip removal
Rugged short design: Ideal for portable or machine drilling with limited spindle clearance
Performs in iron and steel families: Suitable for demanding industrial applications
Summarized by Shop
Cobalt screw machine drills (also know as stub or stubby drills) are manufactured to Aerospace Standard 907. The 135 degree split point is self-centering and reduces thrust. Ideal for portable or machine drilling. Short, rugged construction performs well in a broad range of materials in the iron and steel families. Screw machine drills ar