BGS 152 Repair Kit for Spark Plug Threads M14 x 1.25 mm 5 pcs.

for repairing defective M14 spark plug threads HSS thread cutter - 17 mm drive threaded insert lengths: 9.7 - 11.0 - 13.0 - 19.1 mm collar thickness: 1.0 mm collar diameter: 17.9 mm material: forged carbon steel surface finish: black burnished