Specification: Material: 45# Carbon Steel 24PCS Dies National Coarse(NC) Sizes: 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12, 5/8"-11. 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. Metric Sizes: M6x1.00, M8x1.25, M10X1.0, M10x1.25, M10x1.50, M11X1.5, M12x1.25, M12x1.5, M12x1.75, M14X1.5mm. 22PCS Taps National Coarse(NC) Sizes: 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, 9/16"-12. National Fine(NF) Sizes: 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, 1/2"-20, 9/16"-18. Metric Sizes: M6x1.00, M8x1.25, M10X1.0, M10x1.25, M10x1.50, M11X1.5, M12x1.25, M12x1.5, M12x1.75, M14X1.5mm. 3PCS Thread Files SAE File: 9, 10, 12, 16, 20, 27, 28, 32. SAE File: 11, 12, 13, 14, 16, 18, 20, 24. Metric File: 0.75mm, 1.00mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 2.50mm, 3.00mm Package included: 24PCS Dies 22PCS Taps 3PCS Thread Files (as shown in the picture) Feature: 1. 49PCS Thread Repair Chaser Tool UNC UNF Metric Thread Restorer Kit is specially designed to