
FRACTIONAL Straight Flute Accu-Reamer Series DC • in 200 Vc Fractional Hardness (sfm) 1/16 1/8 3/16 1/4 5/16 3/8 1/2 150 RPM 9168 4584 3056 2292 1834 1528 1146 ≤ 175 Bhn or Fr 0.0018 0.0035 0.0053 0.0071 0.0088 0.0106 0.0141 ≤ 7 HRc (120-180) Feed (ipm) 16.5 16.0 16.2 16.3 16.1 16.2 16.2 CARBON STEELS1018, 1040, 1080, 1090,≤ 300 Bhn75 RPM 4584 2292 1528 1146 917 764 573 10L50, 1140, 1212,12L15, 1525, 1536or Fr 0.0016 0.0031 0.0047 0.0062 0.0078 0.0093 0.0124≤ 32 HRc(60-90)Feed (ipm)7.37.17.27.17.27.17.1 ≤ 425 Bhn 55 RPM 3362 1681 1121 840 672 560 420 or Fr 0.0009 0.0019 0.0028 0.0037 0.0046 0.0056 0.0074 P ≤ 45 HRc (44-66) Feed (ipm) 3.0 3.2 3.1 3.1 3.1 3.1 3.1 ≤ 275 Bhn 115 RPM 7029 3514 2343 1757 1406 1171 879 or Fr 0.0015 0.0030 0.0045 0.0060 0.0075 0.0090 0.0120 ≤ 28 HRc (92-138) Feed (ipm) 10.5 10.5 10.5 10.5 10.5 10.5 10.5 ALLOY STEELS ≤ 375 Bhn 70 RPM 4278 2139 1426 1070 856 713 535 4140, 4150, 4320, 5120, or Fr 0.0015 0.0030 0.0045 0.0060 0.0075 0.0090 0.0120 5150, 8630, 86L20, 50100 ≤ 40 HRc (56-84) Feed (ipm) 6.4 6.4 6.4 6.4 6.4 6.4 6.4 ≤ 450 Bhn 45 RPM 2750 1375 917 688 550 458 344 or Fr 0.0009 0.0019 0.0028 0.0037 0.0046 0.0056 0.0074 ≤ 48 HRc (36-54) Feed (ipm) 2.5 2.6 2.6 2.5 2.5 2.6 2.5 ≤ 250 Bhn 75 RPM 4584 2292 1528 1146 917 764 573 or Fr 0.0010 0.0020 0.0029 0.0039 0.0049 0.0059 0.0078 STAINLESS STEELS ≤ 24 HRc (60-90) Feed (ipm) 4.6 4.6 4.4 4.5 4.5 4.5 4.5 (FREE MACHINING) 303, 416, 420F, 430F 440F ≤ 330 Bhn 55 RPM 3362 1681 1121 840 672 560 420 or Fr 0.0008 0.0015 0.0023 0.0030 0.0038 0.0045 0.0060 ≤ 36 HRc (44-66) Feed (ipm) 2.7 2.5 2.6 2.5 2.6 2.5 2.5 M ≤ 275 Bhn 35 RPM 2139 1070 713 535 428 357 267 STAINLESS STEELS(DIFFICULT) or Fr 0.0010≤ 28 HRc(28-42)Feed (ipm)2.10.00202.10.00292.10.00392.10.00492.10.00592.10.00782.1 304, 316, 321, 13-8 PH, 15-5PH, 17-4 PH, ≤ 375 Bhn 25 RPM 1528 764 509 382 306 255 191 Custom 450 or Fr 0.0006 0.0013 0.0019 0.0025 0.0031 0.0038 0.0050 ≤ 40 HRc (20-30) Feed (ipm) 0.9 1.0 1.0 1.0 0.9 1.0 1.0 ≤ 220 Bhn 125 RPM 7640 3820 2547 1910 1528 1273 955 or Fr 0.0020 0.0040 0.0060 0.0081 0.0101 0.0121 0.0161 CAST IRONS ≤ 19 HRc (100-150) Feed (ipm) 15.3 15.3 15.3 15.5 15.4 15.4 15.4 K Gray, Malleable, Ductile ≤ 330 Bhn 95 RPM 5806 2903 1935 1452 1161 968 726 or Fr 0.0020 0.0040 0.0060 0.0081 0.0101 0.0121 0.0161 ≤ 36 HRc (76-114) Feed (ipm) 11.6 11.6 11.6 11.8 11.7 11.7 11.7 ≤ 80 Bhn 270 RPM 16502 8251 5501 4126 3300 2750 2063 or Fr 0.0025 0.0050 0.0075 0.0100 0.0125 0.0150 0.0200 ALUMINUM ALLOYS ≤ 47 HRb (216-324) Feed (ipm) 41.3 41.3 41.3 41.3 41.3 41.3 41.3 2017, 2024, 356, 6061, 7075 ≤ 150 Bhn 230 RPM 14058 7029 4686 3514 2812 2343 1757 or Fr 0.0025 0.0050 0.0075 0.0100 0.0125 0.0150 0.0200 ≤ 7 HRc (184-276) Feed (ipm) 35.1 35.1 35.1 35.1 35.1 35.1 35.1 N ≤ 140 Bhn 115 RPM 7029 3514 2343 1757 1406 1171 879 or Fr 0.0013 0.0026 0.0038 0.0051 0.0064 0.0077 0.0102 COPPER ALLOYS ≤ 3 HRc (92-138) Feed (ipm) 9.1 9.1 8.9 9.0 9.0 9.0 9.0 Alum Bronze, C110, Muntz Brass ≤ 200 Bhn 95 RPM 5806 2903 1935 1452 1161 968 726 or Fr 0.0013 0.0026 0.0038 0.0051 0.0064 0.0077 0.0102 ≤ 23 HRc (76-114) Feed (ipm) 7.5 7.5 7.4 7.4 7.4 7.5 7.4 continued on next page 328 DRILLS www.kDyRoIcLeLrSa-sgstool.com