http://www.amazon.com/dp/B06XDP38P.
6 x 7″ / 180mm Pro Grade Wet / Dry Polishing Pads in various sizes. We recommend that you use it wet.
One (1) Grit 30 50 100 200 400 1500 (or equivalent).
5/8″-11 threaded hole in the center of one piece of 7″ Velcro pad holder. M14 thread is NOT what you are looking for.
The maximum capacity of the Velcro Pad holder is 5000 RPM. Please do not use it with a high-speed grinder or polisher unless absolutely necessary.
Important Reminder: The pads can be used wet or dry; however, we recommend that you use them wet. FREE SHIPPING (United States). This pack contains the following items: (a)-(b). (a) One piece of Velcro pad holder measuring 7 inches in diameter. The threading on the pad holder is 5/8″-11. M14 thread is NOT what you are looking for. The maximum capacity of the Velcro Pad holder is 5000 RPM. Please do not use it with a high-speed grinder or polisher unless absolutely necessary. (b) 6 Pieces of 7 Inch / 180mm Resin, cut to length (more durable than standard grade polishing pad. Diamond Premium Wet/Dry Polishing Pad for concrete, granite, travertine, marble, and other natural stone. One (1) Grit 30 50 100 200 400 1500 (or equivalent).
This week, we used these 7″ polishing pads to dry polish approximately 400 square feet of concrete floor with a 6000 RPM 7/9″ angle grinder, which was literally the worst task we’ve ever encountered. Despite the fact that the angle grinder was running at a high speed, the disks generally did not leave marks on the concrete. The majority of the pads lasted long enough for us to polish several concrete countertops as well, which we thought was a good deal considering the price.
Although I initially thought the pads were ineffective, we were pleasantly surprised when we swapped out the foam backer pad that came with this set for an aluminum Stadea backer pad. The pads then came to life and performed admirably. Additionally, this set does not include an 800 grit pad, which is a shame because I have discovered that 800 grit is the point at which average density concrete begins to take on a glassy appearance.
