0.5mm Silver Gemstones Burrs Engraving Drill Bits Jewelry Jade Shell Carving Drill Hole Tools Pack of 100

About this item

• High-quality material: high-quality diamond material is selected, it is suitable for long-term use, easy to install and use.
• Wide application: strong and wear-resistant, suitable for jade, pearl, shell, crystal lettering and engraving.
• How to use: Keep the drill straight, add water to cool, and drill slowly.
• Precautions: Do not use excessive force, the grinding powder is not easy to discharge, and the tools are easily damaged.
• Size: 42x2.3mm/1.65x0.09Inch(L x Dia) Shank diameter: 2.35mm/0.09Inch Head diameter: 0.5mm/0.02Inch Sand length: 6-8mm/0.24-0.31Inch Overall length: 42mm/1.65Inch