1. Put amber in a relatively stable environment for a certain period of time, amber adapts to the environment and eliminates internal stress.

2. Don't use too much force when polishing. Severe collision will cause amber to break, and will not give amber new stress.

Third: Choose a suitable drill bit, such as a diamond grinding head.

Very easy to use, it won't crack when punched.

No matter what tools you use, you should pay attention to the following three points:

1, when punching, don't shake your hands, don't let the grinding head tilt, and don't force it inside, which may also cause amber to break;

2. It is also risky to constantly clean up drilling debris and drill slots to remove debris;

3. Too deep holes must be drilled by hand, and the hole depth cannot be drilled with a long drill. The long drill will enlarge the different concentricity of the hand drill at the end. The drill moves in a circular or oval shape, and the amber is directly thrown out or directly stirred and broken.

Don't trust tools too much, be patient and believe that slow work makes fine work.