Features: Mill Cutter, usually used to be assembled on milling machine. Suitable for CNC data processing center, carved, high-speed machines. Can milling of copper, aluminum, tool steel, cast iron, etc. High toughness, abrasion resistance, high-speed cutting for the high hardness. Can processing directly or fine processing to the heat treatment mold. Reducing the number of tool changes, improve machine actuator movement rhythm, save mold making time. Specifications: Material: HSS Model: 4 /4.5/ 6 / 8 / 10 / 12mm for your choice Size: Cutting diameter*shank diameter*shank length*overall length 4mm*6mm*11mm*55mm 4.5mm*6mm*11mm*55mm 6mm*6mm*13mm*57mm 8mm*8mm*19mm*63mm 10mm*10mm*22mm*72mm 12mm*12mm*26mm*83mm Package include 1 x Mill Cutter Package List 1Mill Cutter, usually used to be assembled on milling machine. 2Suitable for CNC data processing center, carved, high-speed machines. 3Can milling of copper, aluminum, tool steel, cast iron, etc. 4High toughness, abrasion resistance, high-speed cutting for the high hardness. 5Can processing directly or fine processing to the heat treatment mold.