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Threading Taps |
 Wrought aluminium alloys Si < 6%(long-chipping) |
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DIN 371  140A T140A AC140A DL140A |
DIN 376 - 374 - 5156  140 T140 AC140 DL140 |
COATING     |
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 ≤ 2 x d1  |
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| Machine tap with 45º right-hand spiral flutes, driving the chips to the back. Chamfer lead 2.5 threads (DIN-Form C). Rake angle 17º÷20º. |
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