该应用采用了具有常规等级和质量的硬质合金工具。
Common grade and quality carbide tools are used for this application.
金刚石涂层工具的切削加工性能明显优于无涂层硬质合金工具。
The cutting performance of the diamond coating tools is much higher than that of the uncoating diamond tools obviously.
步骤4 -背景，然后用削尖的点画到一个针尖一硬质合金工具。
Step 4 - the background is then stippled with a carbide tool sharpened to a needle point.
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