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Threading Taps |
 Heat treated and heat-resistant steelsRm < 1.000 N/mm² |
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DIN 371  183A T183A A183A |
DIN 376 - 374 - 5156  183 T183 A183 |
COATING    |
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  ≤ 3 x d1  |
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Machine tap with 38º right-hand spiral flutes, driving the chips to the back, increased flute length. Threaded length: 10 threads. Starting from the 5th thread, back tapered thread portion to reduce friction and improve swarf clearance. Chamfer lead 1.5 threads (DIN-Form E). Rake angle 8º÷10º. |
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