Thread: Ceramic stones.

Originally Posted by IanS

Find something disposable that scratches easy and have yourself a look at the scratch pattern. If it's 300grit, it's going to be very easy to identify as too rough for use on razors. Even if it is, keep it. It'll be good for working out chips in a matter of a minute or two.

Surgical black I believe is in the 2k range. It's not atypical for decent quality triangles to use them. I wouldn't use it as a finisher for a razor. It will be shavable, but certainly not comfortable.

Edit: checked on blacks and I'm finding them in 900-6k range, so apparently they vary a lot. If it's a really fine one (5-6k) it could make a decent enough finisher. Especially if followed with Chrox before stropping.

IanS, I have no idea what grit my surgical black is. I purchased it about 22 years ago and it cost me then $60.00 to $70.00. I can't remember it's size and I don't have it with me but I would guess it's 8"Lx2 1/2"or 3"W.

Originally Posted by jimk

Some years back we used ceramic stones measuring 6"x2"x1/2" to line some high wear areas inside equipment.

So then it started as Ra 12 and wore smooth? You can lap a Spyderco fine into an ultra fine or even smoother in a day, how long was this mounted in a high wear area of the machinery?

Originally Posted by hardheart

So then it started as Ra 12 and wore smooth? You can lap a Spyderco fine into an ultra fine or even smoother in a day, how long was this mounted in a high wear area of the machinery?

This one that I have was never used in the equipment but rather was new out of the carton. Most of the stones had a few tiny "pimples" here and there on the surface. The one that I have however is totaly smooth and flat.