The tail of the rod is smooth and the handle diameter is standard.!
It can be installed on engraving grinders, electric grinders, engraving machines and pneumatic engraving pens. It is mainly used for engraving, drilling and polishing of ceramics, glass, stone, jade, agate and other materials. When using diamond grinding needles, add water( Otherwise, the emery will be graphitized at high temperatures, speeding up the scrapping process.) , can improve the sharpness and the life of the grinding needle.
Be careful when drilling: Jade carving drilling, like jade carving cutting, requires water cooling, especially if the drill bit is made of artificial diamond. There must be enough water to cool the drill bit, otherwise the artificial diamond will carbonize when exposed to heat and damage the drill bit. When drilling, the drill bit should move in and out slowly and downward. The force must be even when applying pressure, otherwise it is easy to cause the drill bit to break or crack the jade, especially brittle jade or flaky jade pieces. The jade pieces processed during drilling or core setting must be firmly fixed. Once the jade piece becomes loose, drilling may If it goes astray, it may even collapse and be damaged.

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