Single/Double End Cobalt High Speed Steel List 580: Single End, Regular Length, 2 Flute List 582: Double End, Regular Length, 2 Flute Side Milling Hardness Up to 145 Brinell Up to 20 HRC 20 to 30 HRC 30 to 40 HRC 40 to 50 HRC – Work Material Mild SteelsHard BrassBronzeCast IronMed. Carbon Steels Med. Strength Titanium Alloys Med. Strength Stainless Steels High Carbon Steel Titanium Alloys High Strength Stainless SteelsHeat ResistantHigh AlloysAustenitic AlloysNickel Base AlloysHeat ResistantHigh AlloysHigh StrengthStainless SteelsTitanium AlloysAluminumAluminum Alloys Cutting Speed 125-145 SFM 95-110 SFM 50-65 SFM 30-50 SFM 16-32 SFM 160-390 SFM Mill Dia. Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed Speed FeedRPMin/minRPMin/minRPMin/minRPMin/minRPMin/minRPMin/min 3 4,500 4.2 3,360 3.0 2,000 1.4 1,400 0.8 800 0.4 11,200 9.8 4 3,150 4.9 2,360 3.3 1,400 1.6 1,000 1.0 630 0.4 8,000 11.4 5 2,500 5.5 1,900 3.7 1,120 1.8 800 1.0 500 0.5 6,300 12.4 6 2,240 5.9 1,700 3.9 1,000 1.9 710 1.1 400 0.6 5,600 12.4 8 1,600 7.1 1,180 4.6 710 2.2 500 1.1 315 0.6 4,000 15.2 10 1,250 7.9 950 5.2 560 2.5 400 1.3 280 0.6 3,150 15.7 12 1,000 7.5 750 4.6 450 2.4 315 1.5 200 0.8 2,500 14.8 14 900 7.1 670 4.6 400 2.4 280 1.6 180 0.8 2,250 13.9 16 800 6.7 600 4.4 355 2.4 250 1.6 160 0.8 2,000 13.6 18 710 6.5 530 4.2 315 2.2 225 1.6 140 0.8 1,800 13.6 20 630 6.3 475 3.7 280 2.2 200 1.6 140 0.8 1,600 12.4 22 560 5.9 425 3.3 250 2.0 180 1.4 112 0.8 1,400 11.8 24 500 5.5 375 3.0 225 1.8 160 1.3 100 0.8 1,250 11.0 25 500 5.5 375 3.0 225 1.8 160 1.3 100 0.6 1,250 11.0 26 500 5.5 375 3.0 225 1.8 160 1.3 90 0.6 1,250 11.0 28 450 4.9 335 2.6 200 1.6 140 1.1 80 0.6 1,120 10.4 30 450 4.9 335 2.6 200 1.6 140 1.1 70 0.6 1,120 10.4 32 400 4.7 300 2.4 180 1.4 125 1.0 63 0.5 1,000 9.3 35 355 4.1 265 2.1 160 1.3 110 0.9 63 0.5 900 8.8 36 355 4.1 265 2.1 160 1.3 110 0.8 63 0.5 900 8.8 40 315 3.9 236 1.9 140 1.1 100 0.8 56 0.4 800 7.9 45 280 3.5 212 1.7 125 1.0 90 0.7 50 0.4 710 7.1 50 250 3.1 190 1.5 110 0.9 80 0.7 50 0.4 630 6.3 Depth of Cut: For 2 Flute end mills - (1/2) diameter of the tool In case of deeper operation, slow down feed by 20-50% 1/2 D - 2FL 1/4 D - 4FL 1132 End Mill Technical WWW.OSGTOOL.COM