Steel Thread Repair Kits, Packaging Type : Silver

Helio-  coil save-a-thread thread repair kits are the easiest way to 
permanently repair stripped spark plug hole threads, and is the only 
thread repair product that can be used to repair both taperseat and 
gasket type spark plug assemblies. The helicoil save-a-thread insert is 
serrated at the top. When this portion of the insert is expanded, it 
embeds itself into the spark plug port and will never come out! Helicoil
sav-a-thread repair kit contents: •a helicoil piloted reamer tap. With 
the tap, no drilling is necessary perfect alignment of the tapped hole 
can be achieved •three helicoil insert lengths, short, medium, and long,
are available to accommodate all spark plug reaches •an expanding tool 
Virtually
all engines built today have aluminum cylinder heads. This, combined 
with the growing number of diy users, and the need for quick, easy, 
on-the-spot repairs, make helicoil save-a-thread repair kits a must for 
every store and shop.