20 pcs 1.8 mm Diamond Coated Lapidary Drill Hole Needle Solid Bits for Jewelry Agate Gems  2#

 Product Description:  

Head Diameter

Shank Diameter

Total Length

Model

Quantity

1.8 mm

1 mm

51 mm

2#

20 Pcs

Drilling speed:  Drill a Holes in Seconds

Use with water as a lubricant

Must drop water or put the stones in the water, during drilling hole operation.

Application: suitable for use in drill hole on the Jewelry, Gems, jade, agate, amber, beeswax, crystal

Max speed: 18000 RPM

The higher the speed of machine, the effect of drilling hole is better

Suitable Machine: high speed bench drill.
If you using normal bench drill ( speed below 10000 RPM ), the drill needle is easy to be broken.

Note: The drilling hole needles are producted from factory directily, there is rust on needle’s handle, but not influence use.

Quick Tips

1. During drilling operation, with machines can't use more than 1 kg of strength to press the needle, because the diameter of handle is very small, too big power will broken needle.

2. Suggest you use the machine to drilling hole, just like the chicken peck rice, drilling hole after a few seconds, lift up once, and then press the continue to drill.

We Can List Any Size (Head Diameter 1.0 mm/1.2 mm/1.4 mm/1.6 mm/1.8 mm/2.0 mm/2.2 mm ) & Amount Of This Product

Regular Air postage from China to Worldwide and takes 10-30 days delivery to your home

We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly.