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Drill America
#21 Cobalt Heavy Duty Jobber Length Drill Bit
Mfr # D/ACO21
Zoro # G1737647
Sold in multiples of 12 for $25.80
$25.80
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Key Features
- Drill Bit Size #21
- Shank Type Round
- Drill Bit Point Angle 135 Degrees
- Drill Bit Material Cobalt
- Drill Bit Finish Gold
Product Information
- Brand Drill America
- MFR # D/ACO21
- Zoro # G1737647
- UPC # 887861005548
- Country of Origin United States
- Category Jobber Length Drill Bits
Dimensions
Drill Bit Size | #21 |
Overall Length | 3-1/4" |
Flute Length | 2-1/8" |
Details
Description
Cobalt jobber drills. Heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium. The 135 split point is self-centering and reduces thrust. Sizes smaller than 1/16” or #52, and larger than 1/2” have the 118° standard point.
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