[New upgrade] Imported polishing wheel, so that the front surface of the tool is smoother, more effective to improve the processing speed, no sticky tool, higher processing efficiency. [Bright surface treatment, not easy to stick] Mirror spiral groove integral grinding, the surface of the machined parts is bright, not easy to stick the tool. [The new tungsten steel bar is used to improve the wear resistance and hardness, which greatly improves the tool life. [The strength and sharpness of the cutting edge are balanced, and the large core diameter strengthens the tool steel for more stable chip removal. [Effectively reduces the micro-toothing produced by the tool during milling and increases the wear resistance. [Wide processing range] Can process PVC, acrylic, aluminum alloy, copper alloy, etc. 55 degree aluminum milling cutter parameters Material: Tungsten steel (carbide) Surface: High gloss mirror Number of edges: 2 edges Cutting hardness: HRC55. Milling cutter specification: D0.5*3H*D4*50L Cutting edge diameter: 0.5mm Blade length: 3mm Shank diameter: 4mm Total length: 50mm Hexagon angle: 35. Material: various plates, acrylic, PVC, two-color plates, aluminum, copper, zinc, aluminum, nylon, crystal plates, etc. Applicable machines: all kinds of engraving machines, precision engraving machines, CNC machine tools, various high-speed engraving and milling machines, etc. The set contains: 2PCS 2-flute milling cutter