As

Australopithecus scobis

08/11/2004 10:41 PM

skew chisels-bending tips

Greetings,
My LV skew chisels are still only at the drool stage. In the meantime, I
got a $2.29 Ace throwaway 1/2" chisel and reground it. Cuts fine, but the
very tip bent after a couple of strokes. Now, I admit I might have blued
that part during the grind, but I don't think so. (left lots of thickness,
and spent a very long time on the 800 waterstone.) And yes, this chisel is
probably made of recycled soda cans.

So, anybody have such a problem with "real" skew chisels?

--
"Keep your ass behind you"


This topic has 6 replies

ma

max

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

09/11/2004 6:09 AM

I use 12 inch flat diamond stones and a roller guide. The black stones are
very coarse and are used for preparing the tip and removing knicks. I work
down to the extra fine stone and then use a Japanese water stone at 6000
grit and get mirror polish. It takes a little longer but I get an edge I can
shave with and never blue the steel. I have tried everything from a Tormac
wet stone to a bench grinder and decided the diamond stones are the way to
go.
max

> On Mon, 08 Nov 2004 22:41:12 -0600, Australopithecus scobis
> <[email protected]> wrote:
>
>> Greetings,
>> My LV skew chisels are still only at the drool stage. In the meantime, I
>> got a $2.29 Ace throwaway 1/2" chisel and reground it. Cuts fine, but the
>> very tip bent after a couple of strokes. Now, I admit I might have blued
>> that part during the grind, but I don't think so. (left lots of thickness,
>> and spent a very long time on the 800 waterstone.) And yes, this chisel is
>> probably made of recycled soda cans.
>>
>> So, anybody have such a problem with "real" skew chisels?
>
>
> the point on a skew is relatively fragile. expect it to need more
> sharpening than a straight chisel.

AD

Andy Dingley

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

09/11/2004 12:31 PM

On Mon, 08 Nov 2004 22:41:12 -0600, Australopithecus scobis
<[email protected]> wrote:

> So, anybody have such a problem with "real" skew chisels?

No. My bench chisels are all either decent Japanese ones, or very old
English cast steel ones. I can pick these up for pennies each, ruined
and without handles, but the steel is still good. Some of them have
lost their temper, either by abuse or by having been shortened beyond
the hard tip - but being a simple high carbon steel, it's no problem
to re-harden and temper them again.

It's quite common to find a really old shed survivor that has rusted
at the ferrule and lost its tang. Useless as a chisel, as there's no
way to put a handle on it, but it will still harden up as an engraving
graver or punch.

Read the FAQs for rec.knives if you want to know more. They're an
excellent set on steels and hardening.

--
Smert' spamionam

As

Australopithecus scobis

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

09/11/2004 1:06 AM

On Tue, 09 Nov 2004 04:56:58 +0000, Mat A wrote:

> Most chisels made, cheap or expensive need the first 1/8 inch ground off.
> The tip is usually de-tempered from the manufacturing process.

I'm not happy with the bevel angle, anyway. I'll chop off an eighth or so
tomorrow and see how it goes.

--
"Keep your ass behind you"

As

Australopithecus scobis

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

09/11/2004 8:53 AM

On Tue, 09 Nov 2004 12:31:09 +0000, Andy Dingley wrote:

> Read the FAQs for rec.knives if you want to know more. They're an
> excellent set on steels and hardening.

BT,DT. Got lots of great advice from the knowledgeable folk at
rec.crafts.metalworking, too. Just made spiffy 1/8" O-1 irons for my prod
Stanleys, with a lot of help from r.c.m.

One idea is to hack away the polyethylene handle and heat treat the
cheapie chisel from go. I'm also ripping, by hand, the rest of my O-1 bar
to make skews from scratch. Yuck.

There's more to my skewed story. My other-handed skew is ground from a 40-
year-old Fuller chisel that appears to be case hardened and has _never_
held an edge. (That's why it got experimented on.) Its tip curls up, too.

--
"Keep your ass behind you"

b

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

08/11/2004 10:59 PM

On Mon, 08 Nov 2004 22:41:12 -0600, Australopithecus scobis
<[email protected]> wrote:

>Greetings,
> My LV skew chisels are still only at the drool stage. In the meantime, I
>got a $2.29 Ace throwaway 1/2" chisel and reground it. Cuts fine, but the
>very tip bent after a couple of strokes. Now, I admit I might have blued
>that part during the grind, but I don't think so. (left lots of thickness,
>and spent a very long time on the 800 waterstone.) And yes, this chisel is
>probably made of recycled soda cans.
>
> So, anybody have such a problem with "real" skew chisels?


the point on a skew is relatively fragile. expect it to need more
sharpening than a straight chisel.

MA

"Mat A"

in reply to Australopithecus scobis on 08/11/2004 10:41 PM

09/11/2004 4:56 AM

Most chisels made, cheap or expensive need the first 1/8 inch ground off.
The tip is usually de-tempered from the manufacturing process.
"Australopithecus scobis" <[email protected]> wrote in message
news:[email protected]...
> Greetings,
> My LV skew chisels are still only at the drool stage. In the meantime, I
> got a $2.29 Ace throwaway 1/2" chisel and reground it. Cuts fine, but the
> very tip bent after a couple of strokes. Now, I admit I might have blued
> that part during the grind, but I don't think so. (left lots of thickness,
> and spent a very long time on the 800 waterstone.) And yes, this chisel is
> probably made of recycled soda cans.
>
> So, anybody have such a problem with "real" skew chisels?
>
> --
> "Keep your ass behind you"
>


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