Rocky Mountain Twist - #21 135° Spiral Flute High Speed Steel Screw Machine Drill Bit
Item #: 57630337
Brand: Rocky Mountain Twist
Model #: 95002821
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.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
| Product Specifications | |
|---|---|
| Drill Bit Size (Decimal Inch) | 0.1590 |
| Drill Bit Size (Wire) | #21 |
| Drill Point Angle | 135 |
| Drill Bit Material | High Speed Steel |
| Drill Bit Finish/Coating | Bright |
| Flute Type | Spiral |
| Cutting Direction | Right Hand |
| Shank Type | Straight |
| Flute Length (Inch) | 1-1/16 |
| Flute Length (Decimal Inch) | 1.0625 |
| Overall Length (Inch) | 2-1/8 |
| Overall Length (Decimal Inch) | 2.1250 |
| Point Type | Split Point |
| Shank Diameter (Decimal Inch) | 0.1590 |
| Spiral Type | Regular Spiral |
| Threaded Shank | No |
| Number of Flutes | 2 |
| Web Configuration | Tapered |
| Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0007 |
| Drill Tip Finish/Coating | None |
| Web Thinning | Web-Thinned |
| Drill Bit Grade | Heavy Duty |
| Series/List | SH500 |
| Length Type | Regular |
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