Threading Taps

Steels with good machinability
Rm < 750 N/mm² (101,500 PSI)
Nodular graphite, Malleable cast iron		  Machine tap with straight flutes.
 Chamfer lead 2.5 threads (DIN-Form C).
 Rake angle 12º÷14º.


     ≤ 1½ x d1Blind and Through hole

DIN 371 
DIN 376 - 374 - 5156   
COATING		    
105A 105 Bright (without Coating or
without Surface treatment)		 High speed steel class E with 3%
vanadium 1.3344 (EMo5V3) (M-3/2)		 Machine tap with
straight flutes
      High speed steel 1.3343 (DMo5) (M-2) Form C (chamfer lead
2-3 threads)


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