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403M99 Drill Bit Blanks

$17.40Including tariffs

Bulk orders will be discounted, please contact us.

These high-speed steel drill bit blanks come in standard sizes expressed in fractional inches. Fractional inch is the most common trade size used for drill bits. High-speed steel drill bit blanks are the most common choice for creating custom drill bits with precise dimensions to suit a certain application. They are less brittle than cobalt and carbide drill bit blanks.

Product Number: 403M99

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  • Description
Mfr Model 521312520
Measurement System Fractional Inch
Diameter Tolerance +0.0000/-0.0005 in
Material Machining High Speed Steel
Rockwell Hardness 92 Ra
Overall Length Trade Name Long
Drill Blank Shape Rod
Primary Material Application All Materials
Primary Material Application ISO Code K; M; N; S1
Secondary Material Application Hardened Steel
Secondary Material Application ISO Code H
UNSPSC 27112801
Country of Origin USA (subject to change)
Finish Machining Bright (Uncoated)
Size Diameter 5/16 in
Decimal Equivalent 0.3125
Overall Length 12 in
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