3M (TM) 7 Sheet 4-1/4 inch x 11 inch PSA Lapping Microfinishing Film For Scary Sharp Sharpening System Aluminum Oxide AO

I was skeptical at first, but this stuff is a lot easier to use than regular wet sandpaper. It comes with a huge assortment of grits, really more than is needed. Id rather just have 2 sheets each and half the assortment. Its tough to tell the grits apart, so keep track of the colors and mark each one. It comes with some printed info too (see pic). Originally mine showed up with this bit of odd staining but they quickly sorted it out.

The adhesive backing on these super fine abrasive sheets allow you to attach the to a smooth rigid surface.

So far so good with these, Ive used them to polish/hone some straight razors to try this method out. I prefer an actual stone though after trying this but then again this isnt what these sheets were designed for so they get 5-stars from me for their quality.

Works great

First time using this product to sharpen a straight razor. Worked very well , hard for me to tell when it’s worn out.

As advertised.

I ordered these thinking they were adhesive backed and was disappointed when they weren’t but after giving them a try they do an excellent job at sharpening and putting a nice near mirror finish on any metal. And with a bit of stropping with polishing compound I was able to easily shave the hair off my arm

I got this along with a piece of glass because I’ve been trying to hone my straight razors. I have a slew of shapton stones, norton, naniwa, chromium oxide to apply to my strops, and I’ve never been able to get a razor to the point I liked it. That was until I tried this stuff. I kept the backing on and just put it on top of a wet piece of paper on top of the glass and it was amazing. The edge that I got was extremely clean, even when looking at it under magnification. I’m not saying that these are better than stones, but they are much cheaper of an initial investment and for someone new can give you a very good result. I was ready to give up on honing myself but this has rejuvenated my enthusiasm. I’m excited to learn more and continue in this adventure now.

Using these mounted on an aluminum plate for fine finishing on S30V and M390. They stay on the plate well and are removed easily in one piece. The papers do sharpen and polish as expected for their respective grit but do seem to wear out quickly. I would tell others to expect one grit paper per 3.5 inch blade. If you are looking to progressively move through several grits then plan on using several papers in the set.