Cleveland - Letter D 135° Cobalt Jobber Drill - Oxide Finish, Right Hand Cut, Spiral Flute, Straight Shank, 4" OAL, Split Point
Item #: 68303155
Brand: Cleveland
Model #: C15956
Exact Tooling IR#: 04
Features and Benefits
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Oxide prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
| Product Specifications | |
|---|---|
| Drill Bit Size (Letter) | D |
| Drill Bit Size (Decimal Inch) | 0.2460 |
| Drill Point Angle | 135 |
| Drill Bit Material | Cobalt |
| Drill Bit Finish/Coating | Oxide |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Coolant Through | No |
| Flute Length (Inch) | 1-3/8 |
| Overall Length (mm) | 101.60 |
| Overall Length (Decimal Inch) | 4.0000 |
| Overall Length (Inch) | 4 |
| Point Type | Split Point |
| Spiral Type | Fast Spiral |
| Shank Length (Inch) | 2-5/8 |
| Specification Designation | NAS |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | -0.0007 to 0.0000 |
| Web Thinning | Web-Thinned |
| Specification Number | NAS 907 |
| Material Grade | M42 |
| Series/List | 3780 |
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