hss twist drill bit set
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HSS Twist Drill Bits |
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Manufacturing |
Surface Finish |
Sharpening |
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White |
Black |
Black&White |
TIN Coated |
Amber |
Black&Gold |
118° |
135° |
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Roll Forged |
√ |
√ |
√ |
√ |
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Rolled Polished |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
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Fully Ground |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
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Milled |
√ |
√ |
√ |
√ |
√ |
√ |
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Standards |
DIN338, DIN340, DIN1897, DIN1869, DIN345, DIN341 |
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Jobber Length, Taper Length, Screw Machine LengthAircraft Extension, Taper Shank(ANSI) |
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Material |
HSS4241, HSS4341, HSS9341, HSS6542(M2), HSS CO5%(M35), HSS CO8%(M42) |
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Shank |
Straight Shank, Taper Shank, Three Flats Shank, Hexagonal Shank, 1/2″ 3/8″ Reduced Shank |
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Helix Angle |
Type N, Type W, Type H |
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Rotating |
Right Hand, Left Hand |
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Flute |
Normal Parabolic |
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