EXOCARB® WXS® Ultra Premium Performance Carbide End Mills with OSG’s Proprietary WXS® Coating List 4581: 4 Flute, Ball End, Tapered Slotting Hardness Up to 20 HRC 20 to 30 HRC 30 to 38 HRC 38 to 45 HRC 45 to 55 HRC WorkMaterial Mild SteelsCarbon SteelsCast IronAlloy SteelsTool SteelsHardened Steels Stainless SteelsPre-hardened SteelsHardened SteelsHardened Steels CuttingSpeed 400 SFM 330 SFM 300 SFM 240 SFM 160 SFM Depth of Cut Mill Dia. Speed FeedRPMin/minaa Speed FeedRPMin/minaa Speed FeedRPMin/minaa Speed FeedRPMin/minaa Speed FeedRPMin/minaa 0.5 50,000 40.0 0.0004 50,000 40.0 0.0004 50,000 40.0 0.0004 46,573 37.3 0.0004 31049 12.4 0.0002 0.6 50,000 85.0 0.0009 50,000 85.0 0.0009 48,514 82.5 0.0009 38,811 66.0 0.0009 25874 23.3 0.0005 0.7 50,000 130.0 0.0013 45,742 118.9 0.0013 41,583 108.1 0.0013 33,267 86.5 0.0013 22178 31.0 0.0007 0.8 48,514 169.8 0.0018 40,024 140.1 0.0018 36,386 127.3 0.0018 29,108 101.9 0.0018 19406 36.9 0.0010 0.9 43,124 189.7 0.0022 35,577 156.5 0.0022 32,343 142.3 0.0022 25,874 113.8 0.0022 17249 41.4 0.0012 1.0 38,811 205.7 0.0027 32,019 169.7 0.0027 29,108 154.3 0.0027 23,287 123.4 0.0027 15524 45.0 0.0015 1.2 32,343 200.5 0.0031 26,683 165.4 0.0031 24,257 150.4 0.0031 19,406 120.3 0.0031 12937 44.0 0.0017 1.5 25,874 183.7 0.0036 21,346 151.6 0.0036 19,406 137.8 0.0036 15,524 110.2 0.0036 10350 40.4 0.0020 1.6 24,257 194.1 0.0040 20,012 160.1 0.0040 18,193 145.5 0.0040 14,554 116.4 0.0040 9703 42.7 0.0022 1.8 21,562 191.9 0.0045 17,788 158.3 0.0045 16,171 143.9 0.0045 12,937 115.1 0.0045 8625 42.3 0.0025 2.0 19,406 190.2 0.0049 16,010 156.9 0.0049 14,554 142.6 0.0049 11,643 114.1 0.0049 7762 41.9 0.0027 2.5 15,524 166.1 0.0054 12,808 137.0 0.0054 11,643 124.6 0.0054 9,315 99.7 0.0054 6210 36.6 0.0030 3.0 12,937 150.1 0.0058 10,673 123.8 0.0058 9,703 112.6 0.0058 7,762 90.0 0.0058 5175 33.1 0.0032 1. To achieve flute depth, sequential use of each neck length is most effective. 2. When corner processing, reduce the feed rate by approximately half. 3. Use cutting fluid. 1044 End Mill Technical WWW.OSGTOOL.COM