Chicago-Latrobe - #28 135° Spiral Flute Cobalt Screw Machine Drill Bit
Item #: 81372286
Brand: Chicago-Latrobe
Model #: 50883
Features and Benefits
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Oxide/Gold provides a polished finish and prevents chip building, galling and welding on a workpiece. It is commonly used in several applications on low carbons, stainless steel and iron based ferrous metals.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.1405 |
| Drill Bit Size (Wire) | #28 |
| Drill Point Angle | 135 |
| Drill Bit Material | Cobalt |
| Drill Bit Finish/Coating | Oxide/Gold |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Coolant Through | No |
| Flute Length (Inch) | 15/16 |
| Overall Length (Inch) | 1-15/16 |
| Point Type | Split Point |
| Spiral Type | Regular Spiral |
| Threaded Shank | No |
| Web Configuration | Parallel |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0007 |
| Web Thinning | Web-Thinned |
| Drill Bit Grade | Heavy Duty |
| Material Grade | M42 |
| Series/List | 559 |
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