Features:
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.Size: 4.5x0.24cm/1.77x0.09inch (LxDia)
4.Suitable for: Drilling, engraving jade, agate, jade, pearls, shells, etc.
5.Be sure to cool it with water: such as dry drilling. The diamond on the tool head will graphitize due to overheating, and will soon wear out and be scrapped.
6.Use light pressure to feed: Tools rely on grinding to process workpieces. If you use too much force, the grinding powder will not be easily removed and the tools (especially small tools) will be easily damaged.
7.Easy to use: Suitable for long-term use.
Specifications:
Material: Steel
Color: Silver
Brand name: BQLZR
Size: 4.5x0.24cm/1.77x0.09inch (LxDia)
Weight: 30 g
Package include:
30 x Hole Drill Bits