Solid Carbide Endmills ICONS Guide 標記說明 Micro Grain SICO Coated Square Type 4F Ultra Micro Grain SICO-TH Coated Square Type 6F Ultra Micro Grain 0.4µm DIA Coated Square Type 8F Helix Angle Sharp Corner Type Ball Nose 2F Material Hardness Flatland Type Ball Nose 4F Unequal Chamfer Type Corner Radius 2F Variable Helix Corner Radius Corner Radius 4F UNICO Coated Square Type 2F ARCO Coated Square Type 3F