49PCS Thread Repair Chaser Kit UNC /NF Metric Thread Restorer Tap and Die Tool
£31.88
The thread chaser kit and each holes of the box are marked the specification, which can help you to find the right one you need quickly. National Fine(NF) Sizes: 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, 1/2"-20, 9/16"-18, 5/8"-18.
