Tornado 4" Diamond Cup Grinding Removing Disc Wheel with CDB New Technology (Tornado, 4")

I don't leave many reviews but I saw other people having problems with other discs and thought I'd share my experience. I had 24 concrete pillars I need to smooth and sand down to level. This disc did a great job of all the work needed. I sanded down all 24 of them and by the end it was still able to cut material down. So 5 stars for me.

I've ordered this wheel three times now and it's awesome. With skill it can leave a relatively scratch-free honed finish or hog out concrete (or remove coatings) fairly aggressively. The numerous edges make it effective and I suspect it has fairly moderate size grit because it doesn't leave rogue diamond scratches as with bargain basement priced wheels. Reasonable cost, too. I keep a couple on hand and is one of the very few diamond tooling that I repeat buy.

no sirve para nada a los 5 min de uso quedo liso muy mal producto

I think this is a decent wheel for the price. I'm in the resurfacing business, so I go through these diamond wheels. Not bad, but it did wear unevenly. I expect that more from a threaded cup than non-threaded. It will get the job done, if you need to slightly level, and not too bad on thin mil coatings.

I have 16 years of decorative concrete prep and resurfacing experience and this is the best diamond cup is the best I have used. Grinds paint off of concrete very well. Does not bog down or get too hot and melt paint like other diamond cups do. I highly recommend this cup!

I am a stone mason by trade . we had to grind down pitches on flat granite caps and i have never tried this type with the dot pads . I worked great possibly even gave our standard 7" cup a run for its money on the amount it could take off. No problems with it overheating or wearing down .

Didn't last long

Decent blade and it can work really well. If it hits anything too hard like a nail or screw, expect it to destroy the blade. Teeth fly off.

This is the only disk that removed paint from cinder block for me. I tried many others. Only problem is it wears down fast so get a few. Also it often wears down lower than the brush on the dust shroud, i am not sure how to fix this problem yet.

Bought this to remove 3 layers of old hard paint from a car park - started off removing it very well, but effectiveness has slowed down. It is a large car park so maybe I will need another disc. I also bought a 7 inch version of this product, but it is hard work and time consuming to remove several layers of old hard paint. Am spending a lot of money on these discs! Now have bought 2 4 inch, and 1 7 inch disc. Done about 7 square meters of a car park. Am worried about how many more am going to have to buy..... Review update, I was using these discs "dry" - without water, but today I tried using with water on my work surface - the difference was amazing! Removed the residue much quicker and easier. Worked well with both 4 inch and 7 inch discs, I am using 2 grinders.

番手で行くとちょっと荒いのかな？と思う荒くてもいいなら問題なし