[pianotech] Of Chisels

[William Truitt]

For Japanese chisels and planes, whose steel is at least as hard as that of
Dana's chisels, the backs are initially flattened on a Kanaban
http://www.japanwoodworker.com/product.asp?s=JapanWoodworker
<http://www.japanwoodworker.com/product.asp?s=JapanWoodworker&pf_id=01%2E654
&dept_id=13100> &pf_id=01%2E654&dept_id=13100

Where you start on a very coarse abrasive on the flattened steel plate
(kanaban).  Of course, the Japanese tools have the relief in the back which
helps make this process easier, although it is still time consuming.
Essentially you flatten the back of the chisel until the full length of the
edge is the same sheen, which means it is flattened.  Then, when you are
sharpening on the stones, you can address the entire edge in the sharpening
process on both sides.  

 

One suggestion I could make would be to copy a picture of or bring in a
Japanese chisel to a machinist, who could then quickly mill a relief into
the back of this chisel, allowing the last word in sharpening to become more
possible.

 

I think that one great virtue that Dana's mortising chisel has is that of
beef (mass).  That is your friend in bridgework, just like a weighted handle
on a voicing tool assists you.  

 

Will

 

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Gene Nelson
Sent: Sunday, October 10, 2010 12:02 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Of Chisels

 

Curious how you sharpen the beast?

It comes from him sharpened fairly well but without bevel or hollow grind.

On the 1/2 or 3/4" tool, the face is very broad and the steel quite hard -
impossible by hand on a wet stone, at least within this century.

Gene

----- Original Message ----- 

From: PAULREVENKOJONES at aol.com 

To: pianotech at ptg.org 

Sent: Saturday, October 09, 2010 4:36 PM

Subject: Re: [pianotech] Of Chisels

 

Yup.

 

P

 

In a message dated 10/9/2010 6:17:00 P.M. Central Daylight Time,
nelsong at intune88.com writes:

Anybody use the Dana Mazzaglia mortising chisels?
Gene

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