Just received a few days and haven't put into use. The products seem to be in good condition. Will test the product and comment on it recently. If it is good, will buy again!

We purchased this to grind over the walkway of my patio. This grinds away hard surface and works great. It must be tough because what we are grinding is really hard. Don't know how long it will last but it is meeting our need!

Did a lot of grinding and the disc still looks to be in great shape. Would recommend to anyone.

This made short work of concrete. We used it to shape and smooth thinset and I can't imagine it being any easier than with this. Shaping was quick and we were able to give a smooth finish. This is clearly capable of much more. After 2 large area thinset were finished, the tools looked like it had hardly any wear.

We just bought a STI premaster machine to do the heavy work,so I ordered a few pieces discs from DTS to have a test. Would comment again after the test is complete.

Used these diamond discs to grind the concrete for surface preparation. Very aggressive to removal the coating on the concrete.

I have a STI premaster machine, DTS diamond discs are of good quality after testing, much cheaper than the diamonds we get from local shop. Recommend.

Amazing STI diamonds, Works great. Better than I expected. Good design beveled edge segments for grinding over gaps on the floor.

I have used these pads for sanding down a concrete patch but it did the job perfectly and quickly.

Worked very long time, left a lot diamonds after job finished.

It fits my STI premaster machine, powerful with grit 16 which I ordered 24, impressive!

Arrived today but haven't used yet. F it's as good as the other diamond cutting discs I've used in the past it should be great as a grinding disc.

Hello, the product was received and seems to be in perfect condition, will mount and use in my work, if good, come back to buy thank you!

Good durable product, great price, fast delivery

I ordered two disks - both arrived, packed well and in perfect condition. Delivery was relatively quick - I haven't tried grinding concrete yet, so can't comment on how effective they are.

Excellent product. This product did exactly what it was supposed to do

We are removing the old vinly tiles and use these disc to grind for new ceramics.

Satisfied quality and lasting product. It should use the disk with water otherwise it heats and do pumice plus.

Made a job I've done before soooo much easier

worked great in removing old tile thin set ...