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.
5ps HSS ST taps
5pcs installation tools
5pcs break pin tools
5pcs HSS twist drills
1pc hex key
110pcs wire thread inserts
M5*0.8*6.7MM, M6*1.0*10.8MM, M8*1.25*10.8MM
M10*1.5*13.5MM, M12*1.75*16.3MM