Spark Plug Rethreading Tap Thread Repair Set Kit M12 x 1.25 With 4 Inserts
M12 x 1.25mm Thread size. - M12 x 1.25 Inserts - total length 9.5mm. - M12 x 1.25 Inserts - total length 11.5mm. - M12 x 1.25 Inserts - total length 12.7mm. - M12 x 1.25 Inserts - total length 19mm. Special HSS tap with 16mm 6 point drive.