Size (Diametrer x Width):
15x10mm    15x10mm    16x6mm    16x6mm    20x10mm    20x10mm    25x15mm    25x15mm    30x15mm    
30x15mm    35x15mm    35x15mm    40x18mm    40x18mm    45x18mm    45x18mm    50x20mm    50x23mm
Shank Diameter: 6mm
Bit Material: Diamond Coated High Speed Steel
Applications: Stone, Agate, Plastic, Jade, Gemstone, Jadeite...
Suit: Electric grinder, engraving machine, engraving pen
Package Include: According to your choice.

Features

Introducing our high-quality diamond grinding head for jade and gemstone polishing - the perfect tool for shaping and smoothing your precious jewelry pieces.
Also known as a "concave wheel," this diamond grinding head is designed to help you achieve a perfectly round and smooth finish on your rings, bracelets, and other jewelry items.
Crafted from premium-grade diamond abrasive material, this grinding head is highly durable and long-lasting, ensuring that you can use it for multiple projects without worrying about wear and tear.
Its unique concave shape allows you to easily grind and shape your jewelry pieces, giving them a professional and polished look.
Whether you're a professional jeweler or a DIY enthusiast, this diamond grinding head is a must-have tool for your jewelry-making kit.
It's easy to use and can be attached to most rotary tools, making it a versatile and convenient accessory for all your jewelry polishing needs.
So why wait? Order your diamond grinding head today and start creating beautiful, perfectly polished jewelry pieces that will last a lifetime!

How to Use

When putting the tool on, make sure to test if the tool jumps.
If it jumps, stop working and adjust it to work properly.
When drilling, water must be added to cool the drill, to prevent the diamond from overheating and damaging the drill bit.
Avoid shaking when drilling, not only will the drill break easily, but it will also cause damage to the workpiece.
Do not apply too much pressure, this must be controlled.