Truth in Labeling

Don't believe everything you read. Even precision toolmakers can goof up. Here, I have two taps, both marked 1/4-20, but one actually has 28 threads per inch! So, keep an eye out for trouble. . .

Don't believe everything you read. Even precision toolmakers can goof up. Here, I have two taps, both marked 1/4-20, but one actually has 28 threads per inch! So, keep an eye out for trouble. . .