Rocky Mountain Twist - #29 135° Cobalt Jobber Drill - Bright Finish, Right Hand Cut, Spiral Flute, Straight Shank, 2-7/8" OAL, Split Point
Item #: 57615528
Brand: Rocky Mountain Twist
Model #: 95004628
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.
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 with a higher flute angle to remove chips more easily.
Product Specifications | |
---|---|
Drill Bit Size (Wire) | #29 |
Drill Bit Size (Decimal Inch) | 0.1360 |
Drill Point Angle | 135 |
Drill Bit Material | Cobalt |
Drill Bit Finish/Coating | Bright |
Flute Type | Spiral |
Cutting Direction | Right Hand |
Shank Type | Straight |
Coolant Through | No |
Flute Length (Inch) | 1-3/4 |
Flute Length (Decimal Inch) | 1.7500 |
Overall Length (Decimal Inch) | 2.8750 |
Overall Length (Inch) | 2-7/8 |
Point Type | Split Point |
Shank Diameter (Decimal Inch) | 0.1360 |
Spiral Type | Regular Spiral |
Web Configuration | Tapered |
Drill Bit Diameter Tolerance (Decimal Inch) | +0.0000 to -0.0007 |
Number of Flutes | 2 |
Web Thinning | Web-Thinned |
Drill Bit Grade | Heavy Duty |
Series/List | JC514 |
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