7 Sheet Variety Pack PSA Pressure Sensitive Adhesive (.3, 1, 3, 9, 12, 30 and 40 microns) Lapping Microfinishing Film Aluminum Oxide (AO) 8-1/2 x 11 Inches

I am very pleased with the purchase of my 7 Sheet Variety Pack PSA Pressure Sensitive Adhesive Lapping Microfinishing Sheets. It gives me the ability to produce a very fine edge on my woodworking tools. From my experience to date with this product, I am getting as fine an edge as I would with sharpening stones. I use the PSA Sheets on a large piece of safety glass and have all the grits on one surface.

Very easy to stick to a piece of float glass without bubbles so long as you follow the tips with washing the glass then wetting the glass first. I had some old chisels that were in pretty rough shape that are now razor sharp. Coupled with a honing guide, these sheets made quite work of each chisel.

This works really well, dry or with lapping fluid. I dont know what else to say other than this stuck well, cut well, and left consistently sharper edges than I have ever gotten with my stones and strop. As long as you dont accidentally slice one, they last a good long time too, especially as you get into the finer grits. I wish it were a more permanent solution (like stones) where you are only buying once, but this has such an array of grits that even as I add more stones to my collection, there will still be some levels of fine that I can less expensively get with these sheets.

Great for honing a razor sharp edge on my knives.

There is no marking on the sheets as to which grit each sheet is.

The performance at putting very polished and fine edges on knives is superb. I use these free hand on glass plates and I also use them on a TSPROF fixed angle and a Wicked edge fixed angle. IMHO the only ones of use are the 9 and below micron, the 30 and 40 to me have zero use. They are very good for putting a very fine edge and for getting a near mirror finish on the edge bevel that with just a slight bit of stropping will be a bright full mirror finish. The down side to them is on super steels like S90V, S110V, M390, S45vn etc etc you will wear them out like crazy. Trying to get that mirror finish. Now on steels like 420/440, 1050/1070/1095, AUS8/10 VG10, Cts BD1(N) and the likes you will get a couple knives off a 5.5x1 inch set. On the super steels I would say you would be lucky to get one knife off a set if you cut them 5.5x1 inch like for the wicked edge. Im mainly talking about the 3, 1 and 0.3 micron films with the wearing out really quick on the really high carbide high speed tool steels. If your just sharpening more of your normal alphabet soup steels (IE 3cr13mov, 8cr14mov etc) or AUS8/10s, 12c27s 440HC etc etc you will likely get two to three knives before the films need replacing. IMHO this are not a replacement of a proper stone progression and then strop progression for sharpening hobbies and knife collectors like my self.. But for your avg guy that just wants to put a very good edge on his knives and dont want to spend 1000s of dollars on high end stone progressions because he dont sharpen knives all that often then these films do a excellent job for that. I use them to keep wear off my really high end Shapton and Venev stones when Im sharpening knives that I dont care all that much about how perfect the edge is but yet want a hair whittling edge on.. These do not take the place of high end sharpening stones but they will allow you to get some mighty fine edges without spending a lot of money if you dont mind how slowly they cut and having to replace them a lot.

good quality and good seller

I happened to have a big piece of flat glass and was able to stick a half sheet of every grit to it and sharpened every chisel and plane blade I have to a scary sharp edge.

These are almost as good as stones. Will buy again.