Size:Head Diameter 1.2mm JINGLING Diamond Coated Hole Saw Drill Solid Bits Cylindrical Head Grinding Needle Lapidary Carving Tools for Jewelry Gems Glass Description: Diamond coated Hole Saw Drill Solid Bits Tip Shape: Cylindrical Head Tip Head Diameter : 1.2 mm Total length : 42mm ( 1-21/32"), can drill 6 mm depth Shank diameter: 2.35mm ( 3/32") Material: Metal, Diamond. The speed of 5000-50000 r/min Can be installed on the electronic grinder, hanging mill and hand electric drill (not included here). Suitable for use in drill hole on Jewelry, Gems, glass, marble, tile or granite. Used for drill hole, sculpturing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many other abrasive materials. Use with water as a lubricant Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also can't do without water Never use drills while machine is in hammer action Welcome to Visit Our Store: www..com/shops/DiamondTools30
J**P
It is better quality.
My husband really like this bit ...He drills holes on stones to make Pendants...He can use one bit to drill quite a few before breaking.
A**A
Sturdy drill bits
Perfect little drill bits for our project.
M**N
Great for carving
I have used these bits for wood and they work great.
L**N
Average quality
Cheap price
J**S
Good price
Perfect for my crafts
L**S
These do not work
I bought these for drilling my beach glass thinking I got a good deal. Each bit drilled only one piece. A big, fat waste of money.
D**.
Great price
Great product
J**R
Five Stars
Worked well
A**.
Five Stars
Good and helpful product with lapidary project, fast delivery
Trustpilot
1 month ago
3 days ago
