Keadic 13Pcs 100mm×8mm Wool Felt Polishing Wheel Disc Kit for 4 Angle Grinder, Comes with 3Pcs Buffing, Polishing & Cutting Compounds - Black, Brown & Green (18Pcs Polishing & Sanding Wheel Disc Kit)

I bought these wool felt disks to buff and shine resin. They removed all previous sanding marks, but left a nice frosted glass look. A little fresh resin on top of that made it crystal clear. I also used it on steel after 4000 grit sand paper and it brought it to a mirror polish. It heats up a lot more than I expected, but if you control that, you will have a nice finish. Good product.

Awesome

Great product! Worked perfectly for polishing a glass aquarium.

Did the job I wanted it to do.

I bought a 4 grinder years ago and often wonder why I did since 4-1/2 wheels are so much more common, but now Im glad I have it. These wheels fit and work fine on a 4 and the price is amazing. I didnt even try them on one of my 4-1/2 ginders, but I imagine the fit is bad as other reviews have said.

Didnt fit in my 4 grinder Ryobi. Returning.

Beware and have safety guards in place if you use. I returned as plastic went flying on first use.

These will not fit a 4 1/2 grinder...terrible construction

Didnt work the way I hoped, broke and shreaded material to easily.

Bought these felt wheels several months ago and immediately noticed they would not fit on my 5/8-11 angle grinder. They look to be a quality product but when I forced the grinder nut onto wheel, the plastic base split. There was definitely an interference but gave it a try to compound fiberglass. Aside from not running true because the the fit issue, it seems to be a good wheel. Finally had time to sit down and locate the problem. The inner diameter of the felt is about 1.60, the same diameter as my spindle lock nut. That makes for a very tight fit but since the felt is soft, you can force the spindle nut on. Here is where the real problem is. The molded plastic base of the wheel has a 16 mm opening which fits over the 5/8-11 spindle. It does not however index on the 0.8 inch backing Plate but sits on about a 1/8 inch lip of the plate. From the 16 mm hole, it flat to about 1.30 inches and then begins a taper upward to 1.42 for a height of 0 .130. It holds 1.42 diameter for about 0.122 height then opens to 1.55. There is no way a square shouldered 1.60 spindle lock nut us going to fit into 1.42, let alone the taper to 1.30 inches. Even if you deform the plastic 1.55 opening, having it rest on the narrow 0.065 ledge will not work either. Turning a stepped and tapered spacer would place the lock nut too close to the felt surface and risk marring your work piece. Turning down the spindle lock nut and tapering the back is a potential solution. Needless to say this is a huge workaround.