M4 x 0.7 Metric Thread Repair Kit Perma Coil 1221-304 Fit Heli 4MM USA w/Insert
PERMA COIL. OUR STAINLESS INSERTS ARE 50% STRONGER THAN THE ORIGINAL THREAD. KIT CONTAINS TAP, INSTALL TOOL, GUIDE AND 12 INSERTS. MADE IN USA. WE HAVE A DEDICATED TEAM ON HAND AND ARE READY TO HELP!