... 16, 18, 20, and 24 threads per inch #3 Thread file pitches:9, 10, 12, 16, 20, 27 ... restore both left and right handed thread.42Pcs UNC UNF & Metric Thread Restorer Kit Contain: seven UNC, seven ... taps, one UNF and UNC thread file and one metric thread file.Our service:1.Your inquiry ... wide range, good quality, reasonable prices and stylish designs, our products are extensively used in auto repair ...