Reply by Rayne

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Posted on Box joint blade set no longer cuts 1/4" kerf???

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1298 posts in 2139 days

#1 posted 02-09-2019 09:55 PM

My guess would be those blades are created as close to 1/4” as possible under the Metric system (6mm is .14 less than 1/4”). The shims exist to adjust the width as necessary to get them exactly what you need. Now why they cut 1/4” before and not now, I don’t know unless the blades had debris between them or maybe your jig had enough play to fall within the tolerance. Like if your threaded rod is not an Acme rod, there’s a good chance it has enough play, but not enough to really affect your work so all seems well. Just a guess.

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