TurningMillingDrillingTechnicalInformationIndex General turning External tool holders A TN** holder (external)Insert Wiper Finishing Medium Cut Roughing Heavy Turning Cast Iron PCBN/PCD A78 A79 A81 A84 A87 A88 A151 B C D E System code A194 Grade selection A40 Technical info A447 Cutting data A324 A 216