IIINNN222000034500I INN22000065*IN1030INI3N020054*0* Grades Series 15V1H, 5V6H Brinell Feed per Material Hardness SFM Insert Coolant Mild 1018-1045 125-425 500-1100 .015-.035 Low Alloy 4140, 8620, 4340 150-425 400-1000 Steel .010-.025 1 3 2 No Med Alloy P20, S7, H13, O1, A2 150-425 300-900 High Alloy A7-D2 200-425 300-600 .005-.020 1 2 Free Machining 303, 416 150-425 300-800 .010-.030 Stainless 300 Series 304, 310, 316 150-425 200-600 1 2 No Steel 400 Series 410, 420, 15-5PH, 17-4 PH 150-425 200-600 .005-.030 PH Series 13-8 150-425 200-500 HardenedSteel ALL 200-400 .002-.010 1 2 No Grades Series 15V1Z, 5V6G, 15V1D, 15V1G Brinell Feed per Material Hardness SFM Insert Coolant Alloyed Steel 4140, 4340 150-300 Steel 500-10000 .003-.006 1 3 2 No Tool Steel A-6, D-1, D-2 Up to 300 300 Series, 304, 316 - 300-700 .003-.006 1 2 3 No StSaitneleels s 400 Series, 15-5 PH Up to 320 400-900 .003-.006 1 2 3 Yes 13-8 PH - 200-400 .003-.006 1 2 3 No *Preferred for hardened steel RC58-62. **Preferred for milling graphite. The success of any cutter application is a function of many variables. Our initial preference of grade is based on applying a more tough grade. 371