High toughness, high hardness, abrasion resistance. Rapidly, smoothly and accurately to cut. Can processing directly or fine processing to the heat treatment mold. Can milling of copper, aluminum, tool steel, cast iron, etc. Reducing the number of tool changes, improve machine actuator movement rhythm, save mold making time. Used to be assembled on milling machine. Suitable for carved, high-speed machines. Model Number:Counterbore Cutter type:End Mill Brand new Length: approx.48-74mm Shank diameter: approx.10mm Type: M3(3.2 * 6mm),M4(4.2 * 7.4mm),M5(5.2 * 8.9mm),M6(6.2x10.4mm),M8(8.2x13.4mm) ),M10(10.3x16.8mm),M12(12.4x18.8mm) colour:Silver Material:metal Package Contents: 7 * Mill Cutter Only the above package content, other products are not included. Note: Light 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.