SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS Effective length DCDC DNDNStock Type DCONDCON IMPACT MIRACLE END MILLS VF2XLB 30° Ball nose, 2 flute, Long neck 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 e e e B2 Type 1 Effective length RE APMXLU BHTA2 12°LF for inclined angle RE < 1 RE > 1 Type 2 ±0.007 ±0.010 0.2< DC< 60 RE APMXInclined angleLULF - 0.02 4