Features:

*Lapidary drill bits made from diamond powder, high-quality, precise and to use.

*Idea for drill holes on the jewelry, ceramic, jade, agate, glass, amber and semiconductor materials etc.

*The higher speed of drilling machine, the better effect of drilling bits.

*The speed of drilling machine need to be reached 2000 RPM when you use our drill bits to drill holes.Please use cold water during the drilling hole operation

*If you use the drill bit for many times, it will not be very than the first time using.You could cut a little the top of it with plier, it will become again.

Please Kindly Pay Attention:

1. Use cold water during the drilling hole operation

2. Use high-speed(Up 20000 RPM) to drill holes with our drill bits.

3. Be stable, don't shake

Specifications:

*Material: Diamond

*Color: Silver

*Length: Approx. 36mm

*Diameter of Shank: 0.6mm

*Diameter of Head: 1mm

*Applications: jade, agate, stone, crystal, jewelry, ceramic, glass, semiconductor material drilling

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

Quantity: 20PCS

Package Included:

20 x Lapidary Drill Bits

Note:

1. Please allow some errors due to manual measurement

2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real as standard.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.