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TPS M-H (HSS) : HSS right-hand 40° spiral flute, machine taps for ISO metric coarse threads, according to DIN 13, for hardened steel and high temperature alloys.
H TAP COLOR CODE (RED)  HSS-E TAP MATERIAL  6H TAP TOLERANCE  60 THREAD ANGLE  FORM C CHAMPFER LEAD 
  DesignationDPitchl1TLL1dFluteSPre-holeHa°GICATGIREMgiicGrade
  TPS M-2X0.4-H M20.4045.008.0-2.8032.101.6040.04445119 1HEST 
  TPS M-2.2X0.45-H M2.20.4545.008.0-2.8032.101.7540.04445120 1HEST 
  TPS M-2.3X0.4-H   M2.30.4045.008.0-2.8032.101.9040.04445121 DIN profile 1HEST 
  TPS M-2.5X0.45-H M2.50.4550.009.0-2.8032.102.0540.04445122 1HEST 
  TPS M-2.6X0.45-H   M2.60.4550.009.0-2.8032.102.1040.04445123 DIN profile 1HEST 
  TPS M-3X0.5-H M30.5056.006.018.03.5032.702.5040.04445124 1HEST 
  TPS M-3.5X0.6-H M3.50.6056.007.020.04.0033.002.9040.04445125 1HEST 
  TPS M-4X0.7-H M40.7063.007.021.04.5033.403.3040.04445126 1HEST 
  TPS M-4.5X0.75-H M4.50.7570.008.025.06.0034.903.7040.04445127 1HEST 
  TPS M-5X0.8-H M50.8070.008.025.06.0034.904.2040.04445128 1HEST 
  TPS M-6X1.0-H M61.0080.0010.030.06.0034.905.0040.04445129 1HEST 
  TPS M-7X1.0-H M71.0080.0010.030.07.0035.506.0040.04445130 1HEST 
  TPS M-8X1.25-H M81.2590.0013.035.08.0036.206.8040.04445131 1HEST 
  TPS M-9X1.25-H M91.2590.0013.035.09.0037.007.8040.04445132 1HEST 
  TPS M-10X1.5-H M101.50100.0015.039.010.0038.008.5040.04445133 1HEST 
  TPS M-11X1.5-H M111.50100.0017.0-8.0036.209.5040.04445134 1HEST 
  TPS M-12X1.75-H M121.75110.0018.0-9.0037.0010.2040.04445135 1HEST 
  TPS M-14X2.0-H M142.00110.0020.0-11.0039.0012.0040.04445136 1HEST 
  TPS M-16X2.0-H M162.00110.0020.0-12.0039.0014.0040.04445137 1HEST 
  TPS M-18X2.5-H M182.50125.0025.0-14.00411.0015.5040.04445138 1HEST 
  TPS M-20X2.5-H M202.50140.0025.0-16.00412.0017.5040.04445139 1HEST 

The material designation HE was recently changed to HEST. HEST and HE are identical products and therefore you may still encounter HE designated items.

For cutting speed recommendations, click on the required grade number related to specific item geometry