BQLZR 1mm Silver Gemstones Diamond Burrs Engraving Drill Bits Jewelry Jade Carving Drill 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.
• Diamond material, fits drills, flex shafts and dremels.
• Used by Jewelry Designers for drilling clean holes.
• Drills Beach Sea , Sea Shells, Rocks, Marbles, etc.
• Must be used with care, submerged in a little pool of water.

Safety instructions: 1. Razor cuttings permanently enclosed in a cartridge or housing with less than 2mm of cutting exposed． 2. The cuttingd product is not use for people under 18 years. 3. The item is only for industrial cutting/engraving, not hazardous article Feature: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.Diamond material, fits drills, flex shafts and dremels. 4.Used by Jewelry Designers for drilling clean holes. 5.Drills Beach Sea , Sea Shells, Rocks, Marbles, etc. 6.Must be used with care, submerged in a little pool of water. Specification: Material: Metal, Diamond Color: Silver Brand name: BQLZR Shank Diameter: 2.3MM Head Diameter: 1mm Sand length: 6-8MM Full length: 42mm Dimension: 2.3 x 42mm/0.09 x 1.65"(Dia x L) Weight: 120g Package Include: 100 x Diamond Coated Drill Bit Warm reminder: Drill bit generally need to be drill slowly on the stone when start to drill, wait for the stone to open hole and then drill hard. Like hard stones, or ice types, miscellaneous stone, agate, etc., the punch drill bit may not be . If it is used on hard stone, it is recommended to add emulsified oil to lubricate the Drill bit.