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

Great product. Use it for polishing knife blades.

Nice adhesive, durable backing, nice grit selection. Will definitely purchase again in the future.

I purchased these to use with my Worksharp knife sharpening system. I cut them to fit the stone and then just put them on. I get a razor sharp edge and a mirror polish. Very happy with this lapping film.

Product is good but, after buying over 100 packs, I can say with a lot of experience that the quality control on the cutting is terrible. Often getting sheets that are 1/2” off in width sometimes and not cut straight. Don’t get these if you need them to be precise in size.

I love 3M the best for sharpening!

I bought these sheets after watching a YouTube video of someone cutting them to size and sticking them to the ceramic hone on a Worksharp Precision adjust knife sharpener. I cut them into sight oversized strips and they adhere perfectly to the ceramic. Knives come out shaving sharp with a mirror finish. You can get multiple uses out of the strips if you stick them to a piece of wax paper to prevent the adhesive from drying out. I can sharpen about 4 pocket knives 3-4” blades using the strips before it’s time to change strips. I got about 14 strips out of each sheet of lapping film. If you do bigger knives they obviously will wear out more quickly. Pull the paper with the cutting edge towards the apex, don’t push the paper into the cutting edge or you will slice it. I also buff side to side and it doesn’t cut the paper, and finish with 10 strops along the knife blade from hilt to tip on each side and finish with 50 strips each side on the 60,000 grit white film. This stuff is awesome and I will be purchasing more when I need to.

They work great with my wicked edge glass blanks.

Like the adhesive back, disappointed by the durability. Might work well for touching up chisel or plane but I was touching up heads and didn’t hold up

This is the second set I bought. I affixed them to a granite floor tile I bought at the local big box home improvement store. When purchasing this item, you are riding from Taylor Toolworks. They are a GREAT company to order from. I usually order directly from them but I used an Amazon gift card for this order.

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.