JINGLING 1.6 mm Diamond Lapidary Drill Hole Solid Bits for Jewelry Pack of 20Pcs

Product Description

JINGLING 20Pcs 1.6 mm Diamond Coated Lapidary Drill Hole Solid Bits for Jewelry Gemstone Code 3#
Product Description:
Product Name: Lapidary Diamond Drill Bits, Diamond Drill Bits for Stone Jewelry, Gemstone Drill Bits
Head Diameter: 1.6 mm
Total length: 53mm
Shank diameter: 0.9 mm
Quantity: 20Pcs
Drilling speed: Drill a hole in seconds
Use with water as a lubricant
Must drop water or put the stones in the water, during drilling hole operation
Recommend Speed:18000-50000 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 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 1.0mm/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