Cleveland - Letter E (1/4) 135° Spiral Flute Cobalt Screw Machine Drill Bit - TiCN Finish, Right Hand Cut, 34.93mm Flute Length, 63.5mm OAL, Split Point, Straight Shank
Item #: 57612988
Brand: Cleveland
Model #: C14858
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.
Titanium carbonitride (TiCN) is harder and more wear resistant than TiN. It is commonly used on stainless steels, cast iron and aluminum alloys.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.2500 |
| Drill Bit Size (Letter) | E |
| Drill Bit Size (Inch) | 1/4 |
| Drill Point Angle | 135 |
| Drill Bit Material | Cobalt |
| Drill Bit Finish/Coating | TiCN |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Flute Length (mm) | 34.93 |
| Flute Length (Decimal Inch) | 1.3750 |
| Overall Length (mm) | 63.50 |
| Overall Length (Decimal Inch) | 2.5000 |
| Point Type | Split Point |
| Shank Diameter (mm) | 5.56 |
| Shank Diameter (Decimal Inch) | 0.2188 |
| Specification Designation | ANSI; DIN |
| Spiral Type | Regular Spiral |
| Shank Length (mm) | 28.57 |
| Shank Length (Decimal Inch) | 1.1248 |
| Threaded Shank | No |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0007 |
| Drill Tip Finish/Coating | None |
| Specification Number | DIN 1897 |
| Web Thinning | Web-Thinned |
| Drill Bit Grade | Heavy Duty |
| Material Grade | M42 |
| Series/List | 2133 |
| Length Type | Stub |
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