SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS DC DCONStock SMART MIRACLE END MILLS VQMHZVOH - Inch sizes 42°43.5° End mill, Medium cutting length, 3 flute for drilling and slotting with thru-coolant 45° CARBIDE Carbon Steel, Alloy Steel, Cast Iron Tool Steel, Pre-Hardened Steel, Hardened Steel Hardened Steel(<30HRC)( < 45HRC)( < 55HRC)Hardened Steel(>55HRC)AusteniticTitanium Alloy,Stainless SteelHeat Resistant AlloyCopper AlloyAluminum Alloy e e e e u Type1 APMX LF DC<.5000" DC=.5000" 0 0 - .0008" - .0012" .250"