HY-PRO® CARB Performance Sub-Micrograin Carbide End Mills List HP421, HP441 SPEEDFEED CARBIDEP1080-1082TiAIN SHANK35˚h6 Metric Sizes, Multiple Flutes Milling Diameter Tolerance 1≤D≤25 +0 / -0.038mm HP421 HP441 EDP Number Mill Overall Length Shank List HP421 (2 Flute) List HP441 (4 Flute) Diameter Length of Cut Diameter TiAlN TiAlN D L Lc d HP421-0394 HP441-0394 1.0 39 3 3 HP421-0591 HP441-0591 1.5 39 5 3 HP421-0787 HP441-0787 2.0 39 7 3 HP421-0984 HP441-0984 2.5 39 8 3 HP421-1181 HP441-1181 3.0 39 10 3 HP421-1378 HP441-1378 3.5 51 12 4 HP421-1575 HP441-1575 4.0 51 14 4 HP421-1772 HP441-1772 4.5 51 14 5 HP421-1968 HP441-1968 5.0 51 16 5 HP421-2362 HP441-2362 6.0 64 19 6 HP421-2756 HP441-2756 7.0 64 19 8 HP421-3150 HP441-3150 8.0 64 21 8 HP421-3543 HP441-3543 9.0 70 22 10 HP421-3937 HP441-3937 10.0 70 25 10 HP421-4331 HP441-4331 11.0 70 25 11 HP421-4724 HP441-4724 12.0 76 25 12 HP421-5512 HP441-5512 14.0 89 30 14 HP421-6299 HP441-6299 16.0 89 32 16 HP421-7087 HP441-7087 18.0 102 35 18 HP421-7874 HP441-7874 20.0 102 38 20 HP421-8661 HP441-8661 22.0 102 38 22 HP421-9843 HP441-9843 25.0 102 38 25 Packed: 1 pc. Available TiAlN coating only. OSG's Performance & Savings Want to turbo-charge performance? Try EXOCARB® WXL® - List 3620, 3621, 3720 or 3721 (p. 745, 751 or 752) Work Material P M K N S H Chart Carbon Steels Alloyappliesto all listLownumbers1010above1018Med.10351045High1065SteelsDie4140Steels4340Stainless SteelsCast30040017-4 PHIronAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC - good best 850 HY-PRO® CARB Square End WWW.OSGTOOL.COM