Solid Carbide EndmillsMilling Solid Carbide Endmills Recommended Cutting Conditions Table 027 H600 Seires EHSSD4 (H600 Series, vc, rpm and feed increase 20%) G550 Seires EPSSH4, EPSCH6 Material CARBON STEEL / ALLOY STEEL ALLOY STEEL / TOOL STEELSCM, SKT, SKD PREHARDENED STEELNAK80 CENA1 Hardness HB180~250 HRC25~35 HRC35~45 Vc 120 (m/min) 95 (m/min) 79 (m/min) Dia RPM Feed (mm/min) ap (mm) ae(mm) RPM Feed (mm/min) ap(mm) ae(mm) RPM Feed (mm/min) ap(mm) ae(mm) 3mm 12700 762 4.5 0.15 10000 600 4.5 0.15 8386 503 4.5 0.15 4mm 9550 764 6 0.2 7560 604 6 0.2 6290 503 6 0.2 6mm 6370 890 9 0.3 5040 705 9 0.3 4200 588 9 0.3 8mm 4770 668 12 0.4 3780 529 12 0.4 3140 440 12 0.4 10mm 3820 458 15 0.5 3020 362 15 0.5 2515 301 15 0.5 12mm 3180 380 18 0.6 2520 302 18 0.6 2100 252 18 0.6 Material HARDENED STEELSKD61, SKD11 STAINLESS STEELSUS304 316 CAST IRONFC / FCD Hardness HRC 40~55) Vc 48 (m/min) 79 (m/min) 120 (m/min) Dia RPM Feed (mm/min) ap (mm) ae(mm) RPM Feed (mm/min) ap(mm) ae(mm) RPM Feed (mm/min) ap(mm) ae(mm) 3mm 5095 305 4.5 0.15 7430 743 4.5 0.15 12700 503 4.5 0.15 4mm 3820 305 6 0.2 5570 577 6 0.2 9550 503 6 0.2 6mm 2548 356 9 0.3 3720 595 9 0.3 6370 588 9 0.3 8mm 1910 267 12 0.4 2780 556 12 0.4 4770 440 12 0.4 10mm 1528 183 15 0.5 2230 535 15 0.5 3820 301 15 0.5 12mm 1274 152 18 0.6 1860 484 18 0.6 3180 252 18 0.6 1.Use as highly rigid and accurate machine as possible. 2.If the rpm available is lower than the recommend condition, please reduce the feed rate to the same ratio. 3.Use long shank type please reduce the rpm and feed rate. 4.The Feed and RPM may be changed depending on the M/C conditions ,lubricating and cooling system. A226