Product Name: Lapidary Diamond Drill Bits, Diamond Drill Bits for Stone Jewelry.Carving LeiYu needle.. Quantity:20Pcs, Head Diameter:1.0-2.2mm, Shank Diameter:0.6-1.1mm. The drilling hole needles are producted from factory directily, there is rust on needle?s handle, but not influence use.. Use with water as a lubricant.. Suitable for use in drill hole on the Jewelry, Gems, jade, agate, amber, beeswax, crystal.
