Scope of application ------- spark plug repair kit new high quality spark plugs, tighten the taps and inserts.Suitable for size 14MM.If you don't know the size, please measure it first.Focus on the details of the change.It is a high performance modification accessory. Exquisite craftsmanship ------- spark plug thread repair kit A good tool kit for repairing damaged spark plug threads and extending the service life of spark plugs.Convenient and practical, improve the efficiency of spark plug repair work Four sizes -------- spark plug thread tool There are four sizes of plug-ins, suitable for different spark plugs of 14mm thread.Tap size: 73*24*11mm/2.9''*1''*0.4'', spark plug insertion thread diameter: 14mm/0.55'', thread pitch d'spark plug insertion: 1.25 mm / 0.049'' High-quality materials --------- These accessories are made of hardened carbon steel, strong and durable.Easy to maintain, spark plug tap reduce your replacement costs and extend the life of car spark plugs Easy to install---------m14 spark plug thread easy to use and operate. Package includes: 1*rethreaded faucet, 4*spark plug insert.You can directly replace the old or damaged ones without damaging your car.Professional installation is recommended。Item weight ‎150g