PM series For demanding applications For machining of steel to max. 55 HRC and cast iron to heat- resistant alloys. Very solid cutting edge with high stiffness for higher cutting speeds and feed rates. End mills, ball nose cutters, torus mills and high feed mills Diameter range 3.0–20.0 mm Application fields for machining of steel HM PM GM 30HRC 40HRC 50HRC 55HRC 68HRC very suitable suitable PM-4E PM-4B PM-6E PM-2E PM-2B PM-2BC PM-4H PM-4R PM-2R B 329