20 cái 1 mét Mini mũi khoan siêu nhỏ đồ trang sức mũi khoan mũi khoan xoắn Kim Cương Đá Mũi khoan HSS bits

Material: Diamond

Color: Silver

Diameter Size: 1mm

Features:
- Specially designed for drilling holes on jewelry.
- Applications: jade, agate, stone, crystal, jewelry, ceramics, glass, semiconductor material drilling.
- Needle diameter is 1mm.
- Length is 36mm.
- The speed of the drilling machine should be reached 2000RPM.

Place of Application: Drill Bit, Small Bench Drill, Mills

Note:
Install the hole opener on the electric hand drill or small bench drill land use it.
Because this kind of hole opener has no center positioning bit, the hole opener should be tilted at 45, the speed of electric drill should be slowed down, and the glass stone should be contacted slowly.
Open the hole so as to open one month standard crescent groove for positioning.
Do not make the opening too fast. It is necessary to add water continuously to cool the opening device
When drilling, clean water is needed to cool the drill bit. Good cooling can significantly extend the service life of the hole opener. Do not dry the drill without water, otherwise it may cause damage to the drill.

Package Including:

20 x Drill Bits

Product Weight: 2 G / 0.07 Ounces

Product Dimensions (L*W*H): 40*10*10 MM / 1.57*0.39*0.39 Inches

Package Weight: 2.0 G / 0.07 Ounces

Package Dimensions (L*W*H): 40*10*10 MM / 1.57*0.39*0.39 Inches

Retail Packaging: No, No Packing