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End Mills Hardness Levels | Colour | Introduce | Processed materials |
HRC55 | No | When machining aluminium alloys, the aluminium content of the coating reacts with the workpiece at high temperatures, resulting in coating failure and increased tool wear, so milling cutters for high-gloss aluminium do not need to be coated. | |
HRC55 | Seven colors | The seven colours milling cutter uses a DLC nano-coating, where the surface deposition film is made up of multiple layers of metal compounds. These metal compounds typically include elements such as titanium, chromium, aluminium and nitrogen. The ratio of each element and the control of the deposition process can result in a coating of different colours. | |
HRC45 | Black | YL10.2 is tungsten carbide powder with 89.7% WC and 10% cobalt powder, and has high toughness and wear resistance. | |
HRC50 | Bronze | K30 is ultra fine grain and containes Ni and Cr element, which provides high strength and good toughness. | |
HRC55 | Black | WF25 is 0.4micron ultrafine carbide powder and provides very high toughness and wear resistance. | |
HRC60 | Blue | GU25UF is 0.4micron powder with 12% cobalt and has very high toughness and wear resistance.It is the most suitable for hard cutting. | |
HRC65-70 | Golden | WF25 is 0.4micron ultrafine carbide powder and provides very high toughness and wear resistance. |











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