Professional Spark Plug Threaded Coil Insert Repair Tool M12 x 1.25

-Specifically designed to repair and restore spark plug thread for most vehicle engines.

-M12 x 1.25 spark plug threads

-Installation shank keeps coil inside, no need to worry about it falling out.

-Adjustable depth stop

-Includes (5) M12 x 1.25 Screw Coils