•Repairs or renews damaged threads on nuts, bolts or studs.
•Highly tempered, hex-shaped for socket or wrench use.
•16pcs Re-Threading Dies:---
 For chasing i.e. repair work only.
 National Coarse (Silver): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"
 National Fine (Black): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"
•2pcs Thread Files:---
 For repairing external threads: 8 sizes (threads per inch): 10, 12, 14, 16, 18, 24, 27 and 32 .

•Repairs or renews damaged threads on nuts, bolts or studs.
•Highly tempered, hex-shaped for socket or wrench use.
•16pcs Re-Threading Dies:---
 For chasing i.e. repair work only.
 National Coarse (Silver): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"
 National Fine (Black): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"
•2pcs Thread Files:---
 For repairing external threads: 8 sizes (threads per inch): 10, 12, 14, 16, 18, 24, 27 and 32 .