What is it?
Reader John sent in some photos of a mystery tool that he came across. His description is as follows:
It's 4 1/4" long; the "wheel" is 3 1/4" in diameter; each measuring section is 3/4" wide; it comes apart at the acorn nut so you could turn the wheel the other way around; neither the number of "teeth" nor the number of openings between the teeth correspond to the numbers on the wheel.
We've never seen anything like it before. If you can tell us what it's called and what it's used for (with some sort of evidence to back you up), we'll send a random tool your way. Drop a line in the comments section.
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Posted by Doug Mahoney at October 14, 2009 5:11 AM
fin comb/fin straightener - same thing. numbers refer to the number of fins per inch that particular comb is designed to straighten, kind of like threads per inch on bolts. Auto parts stores also carry them.