3 Inch 150 Grit Diamond Grinding Wheel Cutter Grinder Tool with 1/2" Bore for Grinding Hard Alloy, Glass, Tiles and Ceramics 78x12.7x10x15mm 1Pc

Ordered for my wife who is doing tile mural artwork. The diamond # 150 grit is perfect for shaping to fit tile piece in a blink without chipping the porcelain.A great product for use on a mini grinder. For those who's grinder has a 10mm arbor you will need to make a bushing from 10mm to 1/2" to fit the wheel. Very simple just make sure it is properly centered so yo don't end up with a bushing that has a runout as vibration will cause problems

I bought this to use in my Harbor Freight Mini Tool Grinder. I replaced the buffing wheel side of my grinder with this. It just barely fits inside the cover for the wheel, but it did fit. I had to make a spacer to fit on the motor side of the wheel to space it out a bit and allow the nut and washer to tighten up properly though. Does a fantastic job of grinding TIG electrodes and lathe tools.

Good, well balanced heavy wheel. I only wish they made different grits. Not sure why I can't seem to find any other grits for 3" wheels. 150 seems to be the only one available. Would like to see other grits.

Works good , but was too tall for my mini grinder. I had to take the guard off. Ordered another. Used it until I got the new one. Works good on gemstones and crystals. Careful it is agressive.

Picked this up along with a 3" grinder for my work to cut a couple mm off the edges of glass covers for an outside light fixture. I have ground down several of them now and for the price I am impressed; I have had no issues with flaking/cracking of the glass. Just a nice pile of dust next to my grinder and covers that fit perfectly in my balcony light fixtures. I needed 20 covers and to buy the replacements from manufacturer were $50 each, instead I spent $67 on a grinder and cutting wheel and $7 each on the covers that I am using. So this is saving me $793 ($1000-$140-$67) for a couple hours of work, and I'll have a nice little tool for other projects.

Nice diamond wheel. Works great for pointing TIG electrodes. It gets a 3 rating because the wheel is out of balance, causing grinder to move around, so had to clamp grinder to bench. There is no wheel on the other end of the grinder's shaft and without the diamond wheel, the grinder is motionless (no vibration). Not the end of the world but it would be nice if the wheel was better balanced. I even tried turning it at 90 degree increments on the shaft to improve the balance point, without success.

I’ve sharpened about 60-70tungsten on this so far and still going strong.And at least 30 was brand new never sharpened. Takes about 45 sec on a new tungsten. And about 5-10 secs to touch up a used tungsten

I saw many reviews that mentioned the 3" bench grinder from HF as an option for mounting this. That grinder has a 10mm arbor diameter, and only one of the three options for this product has that exact size hole in the middle. Reviews for all three seem to be lumped together, so some mention that they had to make an adapter to fit a disk with a 1/2" hole. This is easy if you have a lathe, but if you don't, make sure you get the one with the 10mm bore. It's listed in its description as having a 3/8" bore, but that's not accurate. It's 10mm, and it fits the HF grinder just fine.As others have said, this combination is a fine way to either touch up a carbide tool or re-point a tungsten electrode. For me, this puts two new tricks up my sleeve.