Oudtinx 50pcs Diamond Coated Grinding Head Grinding Burrs Set for Dremel Rotary Tool

Has everything needed for working with stones, gems and all around materials, bought for jewlry making and has been very helpful tool.

The grinding bits wear down to quickly, but they do grind.

It would be helpful if grit was mentioned in listing. Not bad for the price.

Just the right set for tinkering, polishing and shaping

So far so good! These are awesome for carving rocks and crystals. IMPORTANT, do not push hard, use water and let the bit do the work, otherwise (past experience, not with this brand) the diamond coating will wear out faster. I definitely recommend these!

These bits removed pits of auto rust to bare metal in seconds. The variety of sizes helped in matching the bit to the pit! Will definately buy again but that may be a while as they seem to be long-lasting. Absolutely worth the price..

Good for the price

Good Starter Set. Upgrade the ones you use the most.

They wear out fast but they do cut real well both metal and stones like quarts, and steel but for the price I think its a great deal

Works well on glass etching.