Grades information for Hob AH330 Excellent wear resistance APH730 Good balance between wear and fracture resistance APH130 High chipping and fracture resistance Designed for machining austenitic stainless steel under general cutting conditions AH630 Good resistance to wear and fracture in machining stainless steel at low to medium cutting speed A35HP High fracture resistance Suitable for machining steel and stainless steel under general cutting conditions =P =M =K =N =S =H NOTES 48