When using the stone engraving machine, there will be the following situations resulting in broken knives.

1.Diamond is suitable for fine hard stone. But the harder the stone, the easier it is to break the knife when the knife is fast.

2.

3. The working environment of stone carving machine needs to be cooled with water, otherwise the waste heat will easily make the knife break.

4. The tip of the knife should be rotated to contact the object slowly, otherwise it is easy to break the head of the knife

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