The numbers 15 and 26 are on both the tool and the packaging. They do not appear to be standard UNC or UNF thread sizes. So curious as to what they are used for?
Recently acquired a TF-1127 thread restorer. Included on it are a 15 and 26 threads per inch number. Not sure what these two numbers would have been used for? Any ideas. Contacted Snap-on and they couldn't provide an answer.
Hoping for some insight. Jim