20Pcs 1-2.2mm Lapidary Diamond Drill Bits Carving Burrs Jewelry Tools for Stone

Description

20Pcs 1.0 1.2 1.4 1.6 1.8 2.0 2.2mm Diamond Coated Lapidary Drill Hole Needle Solid Bits for Jewelry Gemstone Code 1.0/1.2/1.4/1.6/1.8/2.0/2.2mm
Product Description
Product Name: Lapidary Diamond Drill Bits, Diamond Drill Bits for Stone Jewelry
Head Diameter : 1.0/1.2/1.4/1.6/1.8/2.0/2.2 mm
Total length : 37-55mm
Shank diameter: 1.1 mm
Drilling speed: Drill a hole in seconds
Quantity: 20Pcs
Use with water as a lubricant
Must drop water or put the stones in the water, during drilling hole operation
Max speed: 18000 RPM
The higher the speed of machine, the effect of drilling hole is better
Application: suitable for use in drill hole on the Jewelry, Gems, jade, agate, amber, beeswax, crystal
Suitable Machine: high speed bench drill, bench drill, fixed drilling machine, etc.
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 machi
nes 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 1.0mm/1.2mm/1.4mm/1.6mm/1.8mm/2.0mm/2.2mm ) & Amount Of This Product
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