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Thread: Help flatening chisel backs ...
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17th April 2009, 09:49 PM #1Golden Member
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Help flatening chisel backs ...
A while ago I purchased some japanese chisels online. They're in quite bad shape and probably need new handles. The blade however isn't too bad although does have some pitting, etc.
I've been working on flatening the backs. The first one I tried took me nearly 30 minutes on a DMT stone to get close to flat! Should it really take this long?
A problem I'm noticing is that the previous owner seems to have put a slight back bevel on the blade (either that or they dropped them one too many times). Should I keep flatening the back until this is all removed or are there other options?
Thanks,
Af.___________________________________________________________
"The things I make may be for others, but how I make them is for me."
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17th April 2009 09:49 PM # ADSGoogle Adsense Advertisement
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18th April 2009, 12:49 AM #2
Hi Af
I would be very careful when flattening the backs of Japanese chisels. You do not want to remove too much steel as you are removing the hardened steel that forms the cutting edge.
Rather than flattening the back to remove the back bevel, grind the bevel back.
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
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18th April 2009, 01:10 AM #3Golden Member
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Thanks for the tip Derek. Much appreciated. I'll start on that tomorrow hopefully.
___________________________________________________________
"The things I make may be for others, but how I make them is for me."
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5th June 2009, 11:51 AM #4
I once spent 14 hours flattening a new jack plane - yes it IS supposed to take that long.
Japanese chisles are meant to be sharpened on both sides every time you sharpen.
The idea is to keep that small arc on the bottom of a Japanese chisle to about a 16th from the working edge, hence don't get carried away and take too much off! Also the bottom is far harder steel than the top.
Japanese chisles are meant to have hollow bottoms, unlike Euro-type chisles.I'm both dyslexic and paranoid. I keep thinking I'm following someone.
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