MHSL small size tap

The production of reliable screw threads on milling bodies or indexable holders is a very difficult application because of the toughness of workpiece materials (usually, thermal refined alloy steels up to 45 HRC are used), the requirements of a high-quality thread finishing and the difficulty of chip ejection.

Yamawa’s R&D team has therefore developed the MHSL Mini, an innovative tool able to face these challenges and guarantee reliable threads.

Main features of MHSL Mini tap:

  • Size range available: typical of the sector, i.e., M2.5 – M3 – M3.5 – M4 – M4.5 – M5 – MF5x0.5.
  • Suitable for through hole tapping of thermal refining steels less than 45 HRC hardness. 
  • Substrate: HSSCo that combine toughness and wear resistance on thermal refining steels < 45 HRC of hadrness typical of the sector, like 1.7225 – 42 CrMo 4, 1.6582 – 34 CrNiMo 6 or 1.2344 – X 40 CrMoV 5 1.
  • Coating: the special coating guarantees longer tool life and better thread finishing.
  • Innovative flute geometry that promotes smooth and reliable chip ejection.

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