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
Rugged short design: Ideal for portable or machine drilling in tight spaces
Gold oxide finish: Enhances durability and resists corrosion
Performs in iron and steel: Effectively drills tough, high-tensile materials
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