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

good quality and good seller

Effortless keeping my chisels supersharp.

Overpriced, it doesnt last long

These are pretty good lapping films. Puts a mirror polish on most metals.

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.

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.

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

Great for honing a razor sharp edge on my knives.

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.

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.