It is very important to use the normal casing size, the tool must be fully inserted into the casing and tighten firmly, so that we can use in the process of cutting tool must provide clamping force, not only partially inserted into the casing, otherwise it will lead to fracture caused damage to the tool shank.
Safety instructions: 1. The bladed product is not use for people under 18 years. When not in use, please put in the box, (with a plastic box) 2. The item is only for industrial cutting/engraving, not hazardous article.