The Anglo American Tools Combination Thread Repair Kits allow users to replace an array of taps and dies. The tools are designed for one-handed use and are capable of restoring inch or metric and right- or left-handed fastener threads. There is no need for calibration or identification of thread type. Kit No. NES1015 has an external diameter range of 5/32" to 11/16" and an internal diameter range of 5/16" to 5/8". Kit No. NES1017 offers the same external diameter range and services internal diameters of 5/16" to 13/16". Kit No. NES1025 services external diameters of 5/32" to 1-1/2" and internal diameters of 5/16" to 1-1/4". Kit No. NES01044 handles external diameters of 5/32" to 1/2" and No. 12 internal diameters.