I sharpened a set of Lazer blades by hand and was shocked that they cut when I was done.
I taped some wet dry sand paper to a round can… sea foam can I think. Then followed the original bevel of the wide bevel till the edge was cleaned up. Then tilted the blades up slightly to create a very fine bevel the width of a hair or piece of paper. Maybe another 15 or 20 degrees higher than what the main bevel is. This fattens up the edge a little and makes it a little more durable.
I think i used 400, 600, and 1000 grit wet/dry sandpaper, getting it wet for the final polishing steps. I read the instructions on a different ice fishing forum. Had a couple other sets and figured I might as well try. These blades hit frozen bottom on a flowage on accident and were DULL. I cut with them on my entire red lake trip in December and they cut well. The test will be to see if I can repeat it or not.
Fyi the angle of the wide bevel isn’t that important. It’s the angle of the fine secondary bevel that controls how much the blade will bite and how long the edge will last.
Tucker