E-Z LOK SK31215 1/2-20 UNF x 1.5D Thread Repair Kit Somta Series 551 - Hss Unf Tap 7/16" Bottom is globally recognized for its

is globally recognized for its high-quality threading systems

No internal coolant — simplified design with fewer maintenance requirements

Engineered for reliability and ease of use

5 NPT MT7 Mill-Thread Insert is designed for machining National Pipe Taper (NPT) threads using helical interpolation on CNC milling machines

BSF button dies are commonly used in restoration work

E-Z LOK SK31215 1/2-20 UNF x 1.5D Thread Repair Kit Somta Series 551 - Hss Unf Tap 7/16" Bottom is globally recognized for itsThe E Z LOK SK31215 Thread Repair Kit is a complete solution for restoring damaged or stripped 1 2" 20 UNF threads in metal components. Ideal for automotive, machinery maintenance, aerospace, manufacturing and general engineering applications, this kit contains everything required to produce strong, reliable replacement threads using premium stainless steel wire inserts. The supplied 1. 5D stainless steel inserts restore threads to their original size