This is a Shoulder and Face Milling Cutter used mainly in CNC Milling and Manual Milling Machine with ISO Carbide Insert Using this can reduce the cost really low compared to HSS, and changing of insert time is also very low, They are hardened 45-50 HRC not to wear out, Pockets are well designed so insert and pocket seat have no gap in them, Run out tolerance is maintained by grinding by the center to center and they have center hole both sides,you can use any ISO inserts of APMT1135 into this.
