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Discussion Starter · #1 ·
I am making a molding plane and I would like to find a 7/16" diameter round file. Ideally it would be the same diameter from end to end, and have a fine cut (like a chainsaw file). So far the closest thing I have found is a rat tailed (tapered) bastard cut (quite coarse) in a 3/8" diameter. I have used the rat tail file as much as I dare, and now need to refine the iron.

A half round would also work... But I can't seem to find a listing where it shows the radius of the file.

I am using the file to shape the iron which is O1 steel. I need to sneak up on a 1/4" radius (1/2" dia.) while shaping the iron, to match the profile of the plane.

"If anyone knows how to describe the file I am needing, I would be grateful".
 

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I would profile a grinding wheel for that job but you can do it the tedious way with a file that has a smaller radius. Maybe a rod with sand paper to finish.
 

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Discussion Starter · #4 ·
I sent you a PM with a e-mail that may help.

Doug
Thanks. I ordered a 12" round rat tail file smooth cut because it is tapered. I may be able to slowly sneak up on the desired radius with it, then use slip stones for the final shape. At least I hope.
 
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