SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS Effective length DCDC DN DNStock DCONDCON MIRACLE END MILLS VCPSRB 30° Corner radius, Short cut length, 2─4 flute, High precision DC ≤1.5 DC≥ 2 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 u u u B2 Type 1 RE APMX BHTA2 15° Effective length LU LF for inclined angle 0.05< RE< 5 Type 2 ±0.010.6< DC< 120 Inclined angle RE APMX LU LF - 0.01 DCON=6 8