Thread: Dan says his Arkansas black surgical stones

are guaranteed to be flat how can I tell if they are flat and how would you flatten one if you decide they are not flat?

get a flat metal piece like a metal ruler or mesuring instrument...put it on the stone and hold it at light source...if light gets in...it's not flat.
also you canwet it a bit and put it on a flat glass surface...see if it sticks...

the only way to flaten an ark is to use a flat diamond lapping plate or a flat hard substrate like a granit plate with added grit...sandpaper usualy is slow on flatening hard arks.

I have four Dan's Whetstones, True Hard, Black, Translucent. I personally have seen their lapping machines. I've witnessed their quality control processes. You shouldn't have any problems with flatness.

I don't think this belongs in here in safety razors?.....Aside, it is elsewhere?

FYI, this thread was duplicated, so I deleted the one that only had one reply.

Otay...So we are honing DE blades on Black Arks! Really flat ones!

We will wait to see if the OP , bigman, clears this up in regard to what type of blades he is referring too.

A slow day on SRP ,,,,

HAR!.............

I've never found a need to flatten any of the dan's stones, and they have gotten their finish process more finely tuned over time. The quality of the finish on the black stone that I posted a couple of days ago is the best I have ever seen on any natural stone, bar none. The entire stone itself is a work of natural art.

Use the stone as it is and let it break in and don't worry about flatness unless it seems to be a problem. It's likely that your razors will be less straight than the stone is flat.