1、High-density polished, super hard,wear-resistant, high temperature. 2、Mainly used in cutting and hook slots. 3、Cutting edge of sharpness with 2 flutes, big load chip groove make you more efficient while processing products. 4、The flute ball nose mill end is high cost‑effective, improving efficiency. 5、The flute ball nose mill end can be engraved copper, aluminum , acrylic, PVC, nylon, resin, most plastics ect. Features: High-density polished, super hard,wear-resistant, high temperature. Mainly used in cutting and hook slots. Specification: Material: HSS Flutes: Two Flutes Mill diameter: 4mm Shank diameter: 6mm Flute length: 11mm Total length: 55mm Package included: 1x 2 Flute Ball Nose Mill End