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Drill America
#21 HSS Heavy Duty Split Point Stub Drill Bit
Mfr # DWDST21
Zoro # G1927408
Sold in multiples of 12 for $15.48
$15.48
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Key Features
- Material High Speed Steel
- Size #21
- Finish Black Oxide
- Overall Length 2-1/8 in
- Style Screw Machine/Stub
Product Information
- Brand Drill America
- MFR # DWDST21
- Zoro # G1927408
- UPC # 887861029957
- Country of Origin China
- Category Spiral Flute Drill Bits
Dimensions
Size | #21 |
Overall Length | 2-1/8 in |
Flute Length | 1-1/16 in |
Details
Material | High Speed Steel |
Finish | Black Oxide |
Style | Screw Machine/Stub |
Cutting Direction | Right Hand |
Cutting Angle | 135 Degrees |
Number of Flutes | 2 |
Point Type | Split Point |
Shank Type | Round |
Description
Screw machine drills (also know as stub or stubby drills) are manufactured to National Aerospace Standard 907. The 135 degree split point is self-centering and reduces thrust. Ideal for portable or machine drilling. Short, rugged construction performs well in a broad range of materials. Screw machine drills are popular in the automotive and construction industries. They are often used in screw machine setup where spindle clearance is limited. Sizes smaller than 1/16 and #52 have the 118 degree standard point.
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