I keep eyeing up one of my swords to take a chunk out of and create a kamisori style razor. Its been bugging me for months. It is 1045 differentially hardened steel. From what I have gathered most razors are tempered carbon steel. I already understand how to NOT mess with an already tempered sword with power tool to not ruin the temper.

It should be around 40HRC for the body and 58-60HRC on the edge. Frankly after destroying one, I think their edge numbers may be a little high. In theory, will this take and hold a shaving edge? Any honemeisters willing to try it out after I wedge it out if I cant get it to shave my ever so forgiving face? Do wedges get a secondary bevel at the edge or do they get flat sharpened? Since there will be a consistent and slight smile to the edge and the spine, is it worth it to flat edge it or just leave it happy? Since the blade currently has a slight convex geometry to it, are there any tips to wedge it out faster since it will wind up so much shorter? Will the distal taper have an effect on the future honing of said razor? Are there any general standards on the attack angle of a wedge, should I work the spine thinner?

Back to the softer than advertised, the edge wont really chip like a hard edge, it rolls and bends. Distal taper is how the back of the sword gets thinner as you go towards the tip, just in case someone is not familiar with it. I am a bit too lazy and wont have access to a micrometer until at least the weekend for the edge angle, blade width and the spine thickness.