SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS DC No. of Flutes DCONStock IMPACT MIRACLE END MILLS VF8MHVRBCH 44° Corner radius, Medium cut length, 8 flute, Irregular helix flutes, with multiple 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 u u e e CoolStar Type1 RE APMX LF 1< RE< 3 ±0.015 16