Thread Chaser Number of Dies in Set 6 For Outside Dia 1-1/4 in to 5 in Threads per Inch 4 5 6 7 7 1/2 8 9 10 11 11 1/2 12 14 16 18 20 24 Capacity 1-1/4 in to 5 in Outer Diameter Function Precision Dies Restore Threads to Original Condition Eliminating the Need for Threadcutting Equipment Includes Six Dies 4 5 6 7 7-1/2 8 9 10 11 11-1/2 12 14 16 18 20 and 24