Chicago-Latrobe - 21/64" 118° Spiral Flute High Speed Steel Screw Machine Drill Bit
Item #: 81133712
Brand: Chicago-Latrobe
Model #: 55113
Features and Benefits
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.3281 |
| Drill Bit Size (Inch) | 21/64 |
| Drill Point Angle | 118 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | TiN |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Coolant Through | No |
| Flute Length (mm) | 42.86 |
| Flute Length (Decimal Inch) | 1.6875 |
| Overall Length (mm) | 74.61 |
| Overall Length (Decimal Inch) | 2.9375 |
| Point Type | Standard |
| Shank Diameter (mm) | 8.33 |
| Shank Diameter (Decimal Inch) | 0.3281 |
| Specification Designation | DIN |
| Spiral Type | Regular Spiral |
| Shank Length (mm) | 31.75 |
| Shank Length (Decimal Inch) | 1.2500 |
| Threaded Shank | No |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0010 |
| Drill Tip Finish/Coating | None |
| Specification Number | DIN 1897 |
| Web Thinning | Web-Thinned |
| Drill Bit Grade | General Purpose |
| Series/List | 157 |
| Length Type | Regular |
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