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I've never had problems with my nortons, or my 1k doing the job...
even on diamond pastes, it took longer...
simply put I should have done a more agressive temper on the steel to get it to hone...

On my O-1 razor I had to set the bevel with 400 & 600 grit sandpaper
followed by a 1k hone, norton 4/8k kitayama 12k, and then worked on diamond pastes down to .5 micron
it took me several hours of...

I just finished my first razor using O-1 as far as hardness goes, you don't want to get full hardness out of it, so D2 would be too hard as well.
A fully hardened O-1 razor with a 2 hour temper at...