Search:

Love that quote ! :rofl2: This has been a very interesting thread for me since I'm not knowledgeable on much of it. I probably won't ever need the newfound info but I love reading tech stuff on...

I didn't know about the greater abrasion resistance but it makes sense considering the applications. Also would make it more difficult to hone to a sharp edge.

I believe it is High Speed Steel ? Drill bits, cutters for lathes, milling machines and such.

I don't know about knives or tool sharpening but I find the superstones ideal for straight razors. Perhaps the softer material lends itself the the finer blades.

If he doesn't respond to this thread shoot KevinT a PM. He may or may not have experience with Naniwas but he does have a lot of experience with sharpening plane blades.