IHFF : Triangular insert holders used for mounting on the MB fine boring heads.
  Designationd mind maxfl1GICATGIREMgiic
  IHFF 25 28.0040.0010.026.504652470 0
  IHFF 32 35.0053.0011.534.504652479 0
  IHFF 40 48.0066.0014.044.004652491 0
  IHFF 50 54.0086.0019.052.004652503 0