... Kit#2 Thread file pitches: 11, 12, 13, 14,16, 18, 20, and 24 threads per inch #3 Thread file pitches:9 ... , 10, 12, 16, 20, 27, 28, and 32 threads per inch Taps: 1/4" - 9 ... sizes pitches Dies: 1/4" - 9/16" (course and fine) These will restore both left and right handed thread.42Pcs UNC UNF & Metric ...