Cobalt Stub Drills, Fractional
- Screw machine drills are also know as stub or stubby drills Short, rugged construction performs well in a broad range of materials.
- Cobalt drills are are effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium
- Display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed
- Manufactured to National Aerospace Standard 907
- 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.
- Ideal for portable or machine drilling
- Popular in the automotive and construction industries. They are often used in screw machine setup where spindle clearance is limited
- Sizes smaller than 1/16 or #52, and larger than 1/2 have the 118 standard point