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268195 Ed Minch <ruby1638@a...> 2019‑03‑24 Ceramic stones
GGG

Anybody try these? They were mentioned on another forum

https://www.amazon.com/Spyderco-4640133-Benchstone-Fine-Box/dp/B000Q99RVI

quoting the poster:

These stones are used dry; the waste appears as a fine dust on the surface and
can be wiped away. If further cleaning is needed, water with something like
Scotchbrite works well. The stones are impervious to water - e.g. they can be
autoclaved for sharpening surgical items.

One huge advantage of these stones is that they stay FLAT. Spyderco say that the
medium, brown, stone is an open cell texture that might wear slightly over time,
the others showing little or no wear over time. They come guaranteed flat over
their 8in length - if the medium stone has worn at all - over many years of
sharpening some very hard steels and other metals - I can't notice it! But I'm
still careful to use the full surface as far as possible. This feature makes
them superb for sharpening plane irons, especially.

Ed Minch
268196 James DuPrie <jbn.duprie@g...> 2019‑03‑24 Re: Ceramic stones
I've got a set of these, but don;t use them. they DO clog up, and once
clogged can't be cleaned. Maybe using only hard steel on them works, but
the after sharpening a few laminated blades, they are clogged up.
YMMV...

-J
268197 Bill Ghio 2019‑03‑24 Re: Ceramic stones
I have had a set for about 25 years. Not perfectly flat. I prefer my natural
stones; I think they cut faster and the hard Arkansas gives a better polish.
That said, I keep the Spyderco on the sharpening bench for quick touch ups. I
clean them every few years in the dishwasher — no bad results because there is
no oil.
268200 Nick Jonkman <njonkman@x...> 2019‑03‑24 Re: Ceramic stones
Hi Ed

I used to sell these Spyderco stones at wood shows for many years, 
probably since the 90's or late 80's. until we retired about ten years 
ago. As far as I am concerned you can't buy better. The best way to use 
them is stroking the edge parallel to the length of the stone. I always 
put my finger nail on the stone and hold the blade between my finger and 
my thumb so that the bevel is flat on the stone then stroke back and 
forth the full length of the stone. Won't hurt your finger nail.This is 
how you sharpen chisels and end cutting blades such as plane irons etc. 
By doing it this way you eliminate getting a rounded end on the blade 
keeping it straight and square.  No jigs to set up, quick and easy. Of 
course you hold it flat on the stone for honing the bur of the back 
still stroking the same way. For knives you basically hold them by the 
handle stroking lengthwise maintaining the bevel angle you want. As a 
matter of fact I usually use the side of the stone for knives holding 
the stone upright on end at an angle, flat towards you, and swinging the 
stone left and right according to the bevel you want and giving a couple 
of strokes pulling the blade across the corners or edge of the stone 
until you get the edge you want. I demonstrated this for about 30 years.

For cleaning the stone wet it, sprinkle some cleansing powder on it and 
use a scotchbrite pad and some water and it will clean up like new again.

  I even use mine to hone carbide router bits etc.

Nick
268203 Ed Minch <ruby1638@a...> 2019‑03‑24 Re: Ceramic stones
Nick

That’s a technique that might work with other types of stones too.  Thanks

Ed

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