... , 1.75,2, 2.5, and 3mm Thread Restoring File, Tap, and Die Kit#2 Thread file pitches: 11, 12, 13, 14,16 ... , 18, 20, and 24 threads per inch #3 Thread file pitches ... ) These will restore both left and right handed thread.42Pcs UNC UNF & Metric Thread Restorer Kit Contain: seven UNC, seven UNF and seven ...