Mill Cutter, usually used to be assembled on milling machine. Suitable for 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. M3: 5.9 (blade diameter) x 3.2 (boot) x 6 (shank diameter) x 45 (full length) : 7.4 (blade diameter) x 4.2 (boot) x 6 (shank diameter) x 48 (full length) M5: 9.5 (blade diameter) x 5.2 (boot) x 6 (shank diameter) x 51 (full length) M6: 11.0 (blade diameter) x 6.2 (boot) x 8 (shank diameter) x 58 (full length) M8: 14.0 (blade diameter) x 8.2 (boot) x 12 (handle diameter) x 67 (full length) Suitable For: Machining of low carbon steel and non ferrous materials Color: silver Material: high speed steel Package included: 20 x End Mill Cutter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.