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

Update: Im increasing this to a 5 star reviews. This lapping film has become an important part of my collection if sharpening tools. I find it especially helpful for attaching it to a dowel and then using it to sharpen recurves and flexible swords. It works far better than regular flat sharpening stones for those applications. Older review- I have a set of 9 very expensive Shapton Glass Stones for sharpening knives, all the way up to 30,000 grit. I tried out these abrasive sheets to see how they compare. The Shapton stones really are far superior, I was glad to confirm. Id feel pretty dumb if they werent. Ill try to make this quick. Im mostly talking about the finest grits. When you swipe your knife across the surface it leaves a visible gray trail. The abrasive is damaged along that trail and it cant be brought back to full performance by rinsing it with water or anything like that. So you have to be very careful not to cross that damaged area on subsequent swipes or else it will mess up the polish you are trying to obtain. So yes, it is possible to get a very fine polish with these sheets, so long as you are very careful and use a fresh sheet for every knife you sharpen. The sheets can be fun to experiment with but I think youll get more value and have a much better experience if you buy expensive stones.

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

Not quite as durable as I would like for sharpening chisels and plane irons. However they will put a seriously sharp edge.

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.

these are okish, they do the job but not better than a cheap stones. i did manage to get a very good mirror bright edge but did not find it easier or quicker than stones. i would imagine that any one reading this is already a sharping snob, so no this will not take your sharping to the next level, and no this will not replace your stones, no they are not much better wet/dry sandpaper you pick up from the auto parts store. in summery if you want to try something different, or have no other way to sharpen they yes these will work for you, but with 3 plates of float glass and costing a total of $59.98, there are much better ways to go about it. Quick tip, make sure the edge of the film lines up with the edge of the glass, if you sharpen a knife with a bolster you will not be able to sharpen all the way to the base of the blade

Ii wish this had either a 5 or a 6um sheet to make these work better.I have a guilitine style paper cutter to trim these into 4×1 lapping strips,then put a mirror edge on my razor sharp folding knife collection

I like to have my chisels and hand planer blades very sharp and these easily do the job and much less expensive then stones. I cut glass to mount them on ( pressure sensitive) works great.

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.

Overpriced, it doesnt last long

These are great. Very easy to use one you know the proper technique. They produce an absolutely stunningly sharp edge on the chisels, planer blades, and knives I sharpened