Series 44, 45, 43CR, 43CB, Ap 43LC, 43, 43L, 43LCB, Diameter (D1) 43B, 43LB, 43EB, 43EC, Ae Ae (inch) 47, 47B, 47L, 47LB Vc Fractional Hardness Ae x D1 Ap x D1 (SFM) 1/8 1/4 3/8 1/2 3/4 1 1600 RPM 48896 24448 16299 12224 8149 6112 Slot Fz 0.0009 0.0025 0.0045 0.0060 0.0070 0.0085 Speed & Feed Recommendations 1 ≤1 Feed 88 122 147 147 114 104 (1280-1920) 2 flutes (IPM) Feed 132 183 220 220 171 156 3 flutes (IPM) 2000 RPM 61120 30560 20373 15280 10187 7640 ALUMINUM ALLOYS ≤ 150 Bhn Profile Fz 0.0009 0.0025 0.0045 0.0060 0.0070 0.0085 N 2024, 5052, 5086, or ≤ 0.5 ≤ 1.5 Feed 110 153 183 183 143 130 6061, 6073, 7075 ≤ 7 HRc (1600-2400) 2 flutes (IPM) Feed 165 229 275 275 214 195 3 flutes (IPM) 3300 RPM 100848 50424 33616 25212 16808 12606 HSM Fz 0.0021 0.0055 0.0105 0.0140 0.0165 0.0195 ≤ 0.05 ≤2 Feed 424 555 706 706 555 492 (2640-3960) 2 flutes (IPM) Feed 635 832 1059 1059 832 737 3 flutes (IPM) 600 RPM 18336 9168 6112 4584 3056 2292 Slot Fz 0.0009 0.0025 0.0045 0.0060 0.0070 0.0085 |  Fractional  1 ≤1 Feed 33 46 55 55 43 39 (480-720) 2 flutes (IPM) Feed 50 69 83 83 64 58 3 flutes (IPM) 750 RPM 22920 11460 7640 5730 3820 2865 ALUMINUM DIE ≤ 125 Bhn Profile Fz 0.0009 0.0025 0.0045 0.0060 0.0070 0.0085 N CAST ALLOYS or ≤ 0.5 ≤ 1.5 Feed 41 57 69 69 53 49 (HIGH SILICON) ≤ 77 HRb (600-900) 2 flutes (IPM) A-390, A-392, B-390 Feed 3 flutes (IPM) 62 86 103 103 80 73 1240 RPM 37894 18947 12631 9474 6316 4737 HSM Fz 0.0021 0.0055 0.0105 0.0140 0.0165 0.0195 ≤ 0.05 ≤2 Feed 159 208 265 265 208 185 (992-1488) 2 flutes (IPM) Feed 239 313 398 398 313 277 3 flutes (IPM) 865 RPM 26434 13217 8811 6609 4406 3304 Slot Fz 0.0008 0.0020 0.0040 0.0050 0.0060 0.0070 1 ≤1 Feed 42 53 70 66 53 46 (692-1038) 2 flutes (IPM) Feed 63 79 106 99 79 69 3 flutes (IPM) 1080 RPM 33005 16502 11002 8251 5501 4126 COPPER ALLOYS ≤ 140 Bhn Profile Fz 0.0008 0.0020 0.0040 0.0050 0.0060 0.0070 N Aluminum Bronze, or ≤ 0.5 ≤ 1.5 Feed 53 66 88 83 66 58 Brass, Naval Brass, ≤ 3 HRc (864-1296) 2 flutes (IPM) Red Brass Feed 3 flutes (IPM) 79 99 132 124 99 87 1780 RPM 54397 27198 18132 13599 9066 6800 HSM Fz 0.0017 0.0045 0.0085 0.0115 0.0140 0.0160 ≤ 0.05 ≤2 Feed 185 245 308 313 254 218 (1424-2136) 2 flutes (IPM) Feed 277 367 462 469 381 326 3 flutes (IPM) continued on next page 48 www.kyocera-sgstool.com