This milling cutter set is made of high quality tungsten steel material with stable performance and long service time. The of new ultra-fine particles of tungsten steel material, with high wear resistance and strength, exclusive high-speed cutting applications for all-round milling cutter. This carbide end mill set has the characteristic of high toughness, good wear resistance, special high-hardness, high-speed cutting, help saving time. The blade is covered with a coating, the high-speed roughing of the hot material can be finely processed to reduce the number of tool changes. Mainly used for aluminum, copper, carbon steel, die steel, alloy steel, castings and other metal materials. Type: milling cutter : carpentry, drill machining tool, family and general construction/project Flute: 4 flute Cutter diameter: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm diameter: 4mm, 4mm, 4mm, 6mm, 6mm, 8mm, 10mm, 12mm Blade length: 12mm, 11mm, 11mm, 10mm, 15mm, 20mm, 25mm, 28mm length: 50mm, 50mm, 50mm, 50mm, 50mm, 60mm, 75mm, 75mm Colour: silver + dark gray Material: carbide Package Contents: 8 x Carbide End Mill (d2 * 4D * 50, d3 * 4D * 50, d4 * 4D * 50, 5*5D*50, 6*6D*50, 8*8D*60, 10*10D*75m, 12*12D*75) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.