Hand Tools Archive

Subject:
narex and their hardening....
Response To:
Taylor Tool Works ()

David Weaver
...as i recall, those chisels are hardened by austempering rather than the typical critical heat and fast quench. I don't know exactly how austempering works and am being too lazy to go reread it other than to find that it cuts steps and leaves a final product at about 59 hardness. The idea of pushing to 61 or 62 (which is probably ideal for chisels and where most of the chisels that warren prefers are) isn't attainable.

That leaves them in striking distance of being nice work chisels. The benefit of this method as a problem solver (not as an obligation) is it takes a chisel that's kind of frustrating to work with and makes it a winner.

I have a rosier view than others will because the sharpening cycle time on a 2000 grit diamond stone and then a buffing wheel is something like 30 seconds, and then on top of it, the edge lasts many times longer. It's a cheater's way to get to warren's edge care efficiency. If I had a force recording scale, I would probably give in to doing a test to prove cut efficiency (resistance), but it's better just observed when you find something like you did - a test where you're seeing edge failure -the kind that was often advised to be solved by purchasing and waiting.

Messages In This Thread

Weaver chisel grind *PIC*
Some quick tests (lots of pictures) *PIC*
Some chisel pictures *PIC*
Re: Some chisel pictures
Re: Some chisel pictures *PIC*
astonished by picture quality *NM*
excellent pictures!
Another test *PIC*
Re: Another test
question
Re: question *PIC*
Re: question
could be a database issue...
Second try for picture *PIC*
yellow pine *NM*
Those pictures..
Nice piece of work
Re: Nice piece of work
Light source?
Re: Light source?
stitches.....
I've made a video.....
video...not for the meek...
It's a very funny video
comments on the two pictures.....
bevel width
It's the scale that escapes me
Re: It's the scale that escapes me
Looking forward to it, thanks! *NM*
More on the Weaver Bevel
Re: More on the Weaver Bevel
the premise is different in this case
I don't agree with limitation of your premise
You nailed it
This is hilarious
Jim - here's your guy
Well that escalated quickly.
Moving the needle
Re: Moving the needle *LINK*
Thanks for the memories *PIC*
Absolutely *LINK*
Positioning *LINK*
Where to find unhndled Narex chisels? *NM*
Taylor Tool Works
narex and their hardening....
how I achieved the Weaver Bever
Weaver Bevel
Further defining the Weaver Bevel
perception of penetration?
solving a problem, not creating one...
Re: solving a problem, not creating one...
BTW
rolling over edges....
On secrets, incantations and open source
Weaver grind—how is convexity added?
Marc Adams
Could've been felt...
Re: Weaver grind—how is convexity added?
The world is upside down :)
I took a nine day Sellers course
Re: I took a nine day Sellers course
it makes sense
How about making a video?
Period costume?
Re: How about making a video?
Trying things out
Re: Trying things out
Re: Trying things out
failed to figure things out...
Re: How about making a video?
Re: How about making a video?
variations on the already done...
thoughts *PIC*
Re: Weaver grind—how is convexity added?
Re: Weaver chisel grind
making peculiar names
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