If you’ve read issue two of HANDWORK you’ll understand why it’s a pain to sharpen thick A2 and O1 irons. It’s a necessary evil, but one that can be slightly minimised though.
After re sawing a board you’re left with a rough surface and I can’t tell you how painful it is to put a freshly sharpened thick iron it. So, by chance I happened to find a cheap Stanley in my shed. I don’t know when I got it or how much I paid for it but it was there sitting in the bottom of my old toolbox in OK condition.
I cleaned it up and flattened the bottom and didn’t do anything else to it. The iron sharpened in a jiffy because it’s thin. I don’t do any finish planing with it, I use it just to take the roughness out and then finish the board off with the rest of my planes.
I still have to sharpen several times in a day, but prepping the board with this cheapy means I save on a couple of trips to the sharpening station.