DC DCON EP7020 SQUAREBALLRADIUSTAPERCHAMFERROUGHINGEXCHANGEABLE HEAD END MILLS 35° Roughing head, 4 flute 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 AlloyCARBIDE e u e e u Type1 APMX LH aThe roughing edge geometry reduces cutting resistance. Effective when rigidity of the machine or work material is low. (mm) Grade Order Number DC APMX LH DCON No. ofFlutes Type IMX10R4F10010 10 10.5 16 9.7 4 a 1 IMX12R4F12012 12 12.5 19 11.7 4 a 1 IMX16R4F16016 16 16.5 24 15.5 4 a 1 IMX20R4F20021 20 21 30 19.5 4 a 1 IMX25R4F25026 25 26 37.5 24.5 4 a 1 Note 1) The fastening size of the holder and head should be the same. (refer to J002) J J023