Thread: testing hardness/re-grinding

all right guys, bought an ebay razor, couldn't tell from the pics but somebody has groudn the thing, looksl like on a belt grinder. now looking at it from the tip I can see the bevels are ruined. so, just chuck it? or

1. how can I test hardness to see if the temper was ruined?
2. is it worth having it reground to get it right?

company is sheehan in sheffield. with the low cost of good razors out there I think it is probably better to chalk it up to experience and toss it. or at the best experiment with etching on it.

Thanks guys.

Red

Give it a go. Regrinding, the way I understand it requires all the wheels and stuff that the factory had. What I would do is grind the edge down (with the blade perpendicular to the stone) until it is flat (on 220 grit sandpaper) and the set a new bevel with a coarse stone 400grit or 1000 grit. Rehone it and see if the temper has been ruined.

Worst case scenario, you've just practiced fixing up an old junker.

Mark.

Unless someone exposed it to high heat or cut a considerable amount off the razor it probably just needs a new bevel. If you have the hones for it I would certainly do it myself.

If the temper is gone and the steel is now soft what will happen is that when you hone it and reach the higher grits the edge will be so thin that it will develop many microchips. This will happen at the 6000-8000 level.