Product Overview
31/64,COBALT JOBBER DRILL HVY DUTY - 500
The high red hardness of Drillco's M42 cobalt drills permit speeds 30% greater than HSS drills. Heavy duty construction made to Type J aircraft specs. For drilling holes in hard, tough materials such as stainless steel, titanium, and high strength alloys.
Features
- Made with premium grade cobalt HSS to drill harder materials
- Cobalt drills can drill approximately 30% faster than HSS drills
- Self centering 135° split-point for reduced thrust requirements and minimized walking
- Bronze surface treatment for high lubricity
- Nas Type J specifications
- Jobber length for most use cases
- Made in USA
Applications
- Drilling holes in high strength materials
- Heavy-duty drilling
- Drilling in stainless steel
Specifications
| Drill Size | 31/64" |
| Drill Size Equivalent | 0.4844" |
| Finish | Bronze Oxide |
| Flute Design | Spiral Flute |
| Flute Direction | Right hand |
| Flute Length | 4-3/8" |
| Flute Quantity | 2 |
| Material Madeof | Cobalt |
| Overall Length | 5-7/8" |
| Point Angle | 135° Point |
| Point Type | Split Point |
| Sets | No |
| Shank Size | 31/64" |
| Shank Type | Straight Shank |
| Specifications | NAS 907 Type J |
| System Of Measurement | Fractional |
DRILLCO > Tooling > Drill Bits > Jobber
