I purchased a Lie Nielsen No. 4 1/2 plane and what I thought was 55 degrees high angle frog (HAF) on Ebay back in 2009 and haven’t used it that much favoring my No. 4 most of the time instead. So I thought I’d sell it on Ebay. However, when I looked at HAF box, I noticed it was stamped 45 degrees frog. I measured the angle of the frog on a flat surface at 34.9 degrees and the one in the plane the same way at 24.8 degrees. That’s ~10 degrees difference so I can assume I have 55 degrees HAF and the box was mismarked, right? Thanks
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It's possible the plane was ordered with the 55° and the 45° frog ordered separately, if I recall you used to be able to do that. If you are thinking of selling the set I might be interested.
You can't measure 5he angles with the frog outside of the plane. It sits in the plane different than it sits on the table.
contact Lie Nielson directly; They are the most helpful people imaginable. Talk to a representative (they are all knowledgeable about LN tools) I'm sure that they can enlighten you over the phone. Leave the expertise to the experts.
Really not necessary, Lie-Nielsen makes 3 different frogs 45°, 50°, and 55°. Given the 10° difference in the two it is obvious they are 45° and 55°, reenforce by the box being marked 45°. As John_C2 mentioned you can't measure the frogs on the bench so the actual measurements are not relevant. If you really want to measure the angle you would need to mount the frog in the plane on a level surface and then use an inclinometer or digital angle gauge.
Appreciate your info and advice, thank you. Later after posting this and re-boxing the frog, I noticed it was stamped on the underside "55" which confirms what you've said.
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