OPERATIONAL GUIDANCE aUse only specified inserts and parts. aClamp the inserts at a specified torque of only. aThe maximum spindle speeds RPMX are shown in Table 1. Ensure that the cutter operates under the maximum spindle speed RPMX. The maximum spindle speeds RPMX for safety purposes are determined in accordance with ISO15641 (Milling Cutters for high speed machining–Safety requirements). (Table 1) Maximum Spindle Speed RPMX Cutting Edge Diameter DC & .500" & .625" & .750" & 1.000" & 1.250" & 1.500" & 2.000" & 2.500" & 3.000" & 4.000" Max. Spindle Speed RPMX (min-1) 9900 19000 16000 12000 9500 7600 6000 4800 3800 3100 Cutting Edge Diameter DC(mm) ø12 ø14 ø16 ø18 ø20 ø22 ø25 ø28 ø30 Max. Spindle Speed RPMX (min-1) ─ ─ 19000 17000 15000 14000 12000 11000 10000 Cutting Edge Diameter DC(mm) ø32 ø35 ø40 ø50 ø63 ø80 ø100 ø125 ø160 Max. Spindle Speed RPMX (min-1) 9500 9000 7500 6000 5000 3500 3000 2500 1500 L L123 INDEXABLE MILLING