What I love most about these STI diamond grinding discs is how they maintain sharpness over extended use. I've worked with them on both old, uneven concrete and polished terrazzo restoration, and they grind consistently without excessive heat buildup. The bonds holds the diamond well, preventing premature loss, which means fewer replacements and lower costs in the long run. Good product!

I've tried many different diamond tools, but these are by far the best for heavy-duty grinding jobs. They cut fast and last a long time.

I'm so satisfied with this purchase. It's rare to find a product that delivers on every promise, but this one does.

Wow, it was fantastic that the products were such aggressive and made the grinding work easier,nice!

Used this disc for removing a layer of old thinset mortar from where my outdoor tiles came loose. Disc went through the old material with no problems. Seemed very durable and minimal loss of disc material after completion of the job.

The grinding discs I bought from DTS are much cheaper than our local store. I doubt for the product's quality since the price is low, but the product is beyond my expectation. Very durable and powerful. Will recommend these to my friends.

Worked exactly as advertised. I used this to smooth out the hard concrete and it came out great. Fantastic product.

Arrived on time. Worked great grinding down concrete and did it's job with a good lasting durability.

I have been looking for a suitable and aggressive grinding discs for my STI machine. Luckily, I bought them from DTS online store with a good price.They worked great than I wanted.

I bought one set of this STI grinding discs, The performance is same as original metal grinding disc, and they are of much lower prices.I recommend them.

Premium quality and the price is low. I would buy again next month and recommend it.

Fast shipment, did a good job on grinding concrete. Save time and money!

good quality, fair price, good abressive power.

used this to remove glue from over 450sqft of concrete. Works great, even ground down well after heavy use.

Excellent seller, good quality goods, fast delivery of the order.

Works good.Test that the blade spins free before turning on the grind, you could burn up a grinder if it is in a bind.

very very good tools, will buy it again.

I had some uneven surfaces in the floor when I took down a wall and added on, These disc's cut that concrete down to smooth as can be and work very well.

Great product, reasonable price and fast shipping.

Good product. Corresponds to the description. Recommend.