BQLZR 1mm Silver Gemstones Diamond Burrs Engraving Drill Bits Jewelry Jade Carving Hole Tools Pack of 100

The top diameter of the jade punch is 1mm/0.04inch, the bottom diameter is 2.3mm/0.09inch and the total length is 42.6mm/1.68inch, please check the size before purchasing to avoid buying the wrong. The jade punching needle is made of high quality metal diamond, strong quality, not easy to damage, long service life, is your excellent choice for polishing jade. Be sure to put water cooling (similar to the hospital drip like drip device), such as dry drilling, tool head diamond due to overheating will be graphitized, thus quickly wear scrap. Light pressure to feed, diamond tools are relying on grinding to process the workpiece, excessive force, grinding powder is not easy to exclude, the tool (especially small tools) is also easy to damage. The jade punching needle is widely used for polishing jade agate, glass jadeite pearl shells etc., penetrating the hard shells quickly and perfectly. The package of jade punching needles contains a total of 100 pieces of punching needles to give you the perfect finish to your job and meet your needs.