TEMO 2 pc White 1-1/2 Inch 40 mm Mounted Stone Point Ball Aluminum Oxide Grinding Abrasive, 1/4 Inch Shank

Some comments complain about wobble. On my unit they run true and last pretty well. At 35,000 rpm they have to be in a collet that chucks them tight and runs true.

These bits got hot and melted and in the process totally ruined the end of our dremmel tool! The bit got hot and melted the machine. Now, because of these bits, we will have to purchase a new dremmel tool. Can you please help us with this matter? We shouldn't have to replace our dremmel tool because of defective bits.

Good quality. Easy to use with my Dremel rotary tool. Arrived on time and was packaged well.

a fairly course grit not for a fine finish

totally unbalanced

Low to medium speed, ball began to come apart before It touched the work piece. Scary

I'm using these for Knife making. They work very well for grinding down the edge after I've removed the larger amount on an 8 inch grinder wheel. They last a long time and they don't fall apart and turn to dust like a cheaper product would. I recommend them.

Have used grinding points before,and these were good quality.

Bonne qualité pour le prix.

These are decent grinding stones. I use them on 316 stainless which is very hard. They stand up well and are of good quality. Much cheaper than the Dremel branded grinding stones.

Perfect.