Reply by BTimmons

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Posted on Corrugated bottom on plane?

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2303 posts in 2506 days

#1 posted 05-10-2012 08:22 PM

The grooves mean that there’s less material that’s contacting the board surface that the plane rides on. That means a little less friction, and it also means less time is spent flattening the sole since you don’t have remove so much metal. You see hollows and grooves cut into the backs of Japanese chisels and plane blades, too. For one thing, the steel they use is extremely hard so it makes sense to have less surface area to flatten while sharpening.

-- Brian Timmons -

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