A universal thread chaser for outside threads where the outside diameters is between 35mm to 125mm (1¼" to 5"). Quickly restores threads to near original condition. Die cast alloy grip will not damage threads. Simply select the appropriate thread chaser insert to match your thread. Slightly tighten against the good threads and work from this position to restore the damaged threads. SIX chasers included. Includes the following thread chaser sizes: Metric - 1mm, 1.25mm, 1.5mm and 1.75mm. Metric - 2mm, 2.5mm, 3mm and 3.5mm. Inch - 4, 5, 6 and 7. Inch - 7.5, 9, 11 and 11.5. Inch - 8, 10, 12 and 14. Inch - 16, 18, 20 and 24. Supplied in a handy clip shut carry case.