QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in soft metals with this helical thread repair kit. STAINLESS STEEL WIRE – Kit includes stainless steel threaded inserts that are resistant to corrosion and can withstand temperatures to 800°F. FOR USE WITH APPLICATIONS – The metal threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc. KIT INCLUDES – Convenient kit includes coil threaded inserts for metal, drill, STI tap, threaded insert installation tool, and tang break tools.