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Descriptions:

Our lapidary drill bits are made from diamond powder, precise and sturdy. It is perfect for drilling holes on the jewelry, ceramic, jade, agate, glass and amber etc. Using high-speed of drilling machine to drill will to a good drilling effect. Please use cold water to drill. Our drill bits are very sharp and you could use them for many times. It is a good drilling tool for you to choose from.:

Features:

Made from diamond powder, high-quality, precise and durable 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 20000 RPM when you use our drill bits to drill holes. :

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

Please Kindly Pay Attention:

-Use cold water during the drilling hole operation :

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

-Be stable, don't shake:

Specifications:

Condition:

100% Brand New and High Quality

Material:

Diamond Powder

Color:

Silver

Length:

Approx. 36mm

Diameter of Shank:

0.6mm

Diameter of Head:

1mm

Weight:

Approx. 4g

Quantity:

20PCS

Package Included:

20 x Lapidary Drill Bits:

Please Note:

1. Please allow some errors due to manual measurement :

2. Monitors are not :