Yakamoz 30Pcs 2.35mm Shank Titanium-Coated Diamond Burrs Set Rotary File Burs Accessories Kit for Rotary Grinder Tools Grinding Polishing Carving Stone Jewelry Glass Ceramics

They last between five and ten seconds before melting no matter the speed on the dremel

They cut very good (hardwood), and are durable. Enough said.

Best deal and Quality

This is a great little grinding bit set for jewelry making. Love them!

Bueno

I primarily bought the set for the 2.35 mm shanks to fit quick change handle I havent found a set of diamond bits that survives my abuse for very long so they seem to be equal to other sets