The Thread repair kit is usd to repair the old damaged thread by using the screw insert which need to use the Drill; ST tap; Insert handle; Break tools for help.
1pc HSS ST taps
1pc installation tools
1pc break pin tools
1pc HSS twist drills
1pc hex key
10pcs wire thread inserts
M5 X 0.8
M6 X 1.0
M8 X 1.25
M10 X 1.0
M10 X 1.25
M10 X 1.5
M12 X 1.25
M12 X 1.5
M12 X 1.75
M14 X 1.25
M14 X 1.50