This is also a very common method in jewelry factories. When gluing with sticky rhinestones, pearls or other trinkets, because it is manual operation, due to various reasons, the gluing is uneven, and it is inevitable that the drill will fall off, the drill will be crooked and the glue will be less. So seeing this situation, the staff will hold a hair dryer and face the glue. After blowing hot for a while, they will gently pick it with an awl. Just a little trim!