Reply by Ron Hock

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Posted on Bedrock 605 1/2 restore

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Ron Hock

1 post in 2559 days

#1 posted 03-17-2012 06:44 PM

Hi Greg,

I apologize for the out-of-flatness of your blade. The demand is quite small for the 2-1/4” (#5-1/2) blades so we continue to make them right here in our back-yard shop instead of having them made in the factory in France. The difference is that our small shop doesn’t have the surface grinder necessary to flatten blades after heat treatment, which is where distortion (non-flattness) happens. We try to weed out blades that are TOO out of flat but sometimes one gets past us. Yours is especially nasty in that it appears to be convex across the back which makes it all the more difficult to flatten. They usually cup slightly (a few thou at most) during hardening which is much easier to correct. Please accept my apology and contact me off-list (you can use the mail form at to arrange for a replacement.

While waiting for your replacement blade to arrive, why not give the ruler trick a try? You’ll be getting a new blade anyway so you have nothing to lose. After only a few seconds of flattening (no kidding), you’ll be able to use the blade you have until the new one shows up. Not everyone agrees with it, and you shouldn’t use it for chisels, but it saves an immense amount of time on plane irons. Worth a try, IMHO.

My compliments on the beautiful job you’re doing on the restoration. Nice work!

Ron Hock

-- Ron Hock,

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