Features For Cutting And Engraving: The steel square end mill is mainly used for cutting and engraving, with high precision, high sensitivity, high stability and durability in use. Applicable to A Variety Of Materials: The ball-end helical milling cutter can engrave copper, aluminum, ABS, acrylic, PVC, nylon, resin, most plastics and other materials, and is widely applicable. High-density Polishing: The edge of the helical milling cutter is finely ground, high-density polishing, and has the characteristics of scratch resistance and high temperature resistance. Strong Toughness: The double-edged milling cutter is made of selected steel, which has the characteristics of high hardness, super toughness and longer wear-resistant time. Excellent Workmanship: This milling cutter is well made, a perfect replacement for old or damaged ones, easy to install and remove, ready to use at any time, more convenient and effort-saving. Features: 1.Made of steel, high hardness, super toughness, longer wear and edge grinding with ultra fine polishing. 2.High-density polished, wear-resistant, high temperature. 3.High cost-effective, improve efficiency. 4.Mainly used in cutting and engraving. 5.Can be engraved copper, aluminum ,ABS, acrylic, PVC, nylon, resin, most plastics etc. Specification: Material: Tungsten steel Weight: 46g/1.6oz Color: Silver Size: as pictures shown Package List: 10 x Ball Nose End Mills Package List