Threading Taps

Steels with good machinability
Rm < 750 N/mm² (101,500 PSI)
Nodular graphite, Malleable cast iron		  Machine tap with spiral point and coolant grooves, driving the chips ahead.
 Chamfer lead 4-5 threads (DIN-Form B).
 Rake angle 15º÷17º measured in the 3rd thread.


     ≤ 0.5 x d1Through hole

DIN 371 
DIN 376 - 374 - 5156   
COATING		    
151A 151 Nitride surface treatment High speed steel class E with 3%
vanadium 1.3344 (EMo5V3) (M-3/2)		 Machine tap with spiral
point and coolant grooves,
driving the chips ahead
        Form B (with GUN-nose and
chamfer lead 3.5-5 threads)


We reserve the right to make technical changes.

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