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.
3.Suitable for drilling, engraving jade, agate, jade, pearls, shells, etc.
4.Be sure to cool it with water, such as dry drilling. The material on the tool head will graphitize due to overheating, and will soon wear out and be scrapped.
5.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
6., easy to use.

Specifications:
Material: Steel
Color: Silver
Brand name: BQLZR
Size:
Shank diameter: 2.35mm(3/32")
Head diameter: 1.5mm/0.06"
Sand length: 17mm/0.67"
Overall length: 45mm/1.77"
Weight: 20 g

Package include:
20 x Coated Hole Drill Bits