[pianotech] Of Chisels

[Thomas Cole]

  I only use the Tormek system when I want to remove a fair amount of 
material. The water bath keeps the edge cool protecting the temper, but 
the edge it leaves is too rough. So I change to a Veritas honing guide, 
set for a slightly steeper angle. The guide permits flattening the back 
as well as the bevel.

Final edge dressing is with a light touch of a burnisher.

Tom Cole

On 10/10/10 8:01 AM, David Love wrote:
>
> I'm curious about those who use the Tormek system, how do you go about 
> flattening the back of the chisel?
>
> David Love
>
> www.davidlovepianos.com
>
> *From:* pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] 
> *On Behalf Of *Thomas Cole
> *Sent:* Saturday, October 09, 2010 10:44 PM
> *To:* pianotech at ptg.org
> *Subject:* Re: [pianotech] Of Chisels
>
> Another thing I like doing is to square up the blade and at the same 
> time remove any nicks in the edge (see photo).
>
> The Tormek system is great for recreating the bevel, but be careful 
> you don't grind at a very low angle on Japanese chisels due to the 
> brittleness of the high-carbon steel.
>
> Tom Cole
>
> William Truitt wrote:
>
> And, as you know Jim, you have to flatten the back on the chisel 
> before you can begin to sharpen it.  Which is why the backs of these 
> chisel has one or more reliefs, which allows you to bring it to a 
> flattened state much more quickly.
>
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