Easy to Use: This spark plug thread tapping tool set is easy to use and operate. This is a practical accessory for your car, which can provide you with a convenient and practical using experience.<br> <br> Four sizes: spark plug thread tool are four plug-in sizes, suitable for to different 14mm thread spark plugs. Tap size: 73*24*11mm/2.9'*1'*0.4', spark plug insert thread diameter: 14mm/0.55', spark plug thread pitch: 4 Sizes of Inserts: This spark plug wire repair tool comes with four sizes of blades for different spark plugs ignition thread 14mm. If your original tool is broken or lost, or you want to change it, please choose us.<br> <br> High Quality Materials: These accessories are made of hardened carbon steel, solid and durable. Easy to maintain, spark plug tap reduce your replacement cost and extend the life of car spark plugs<br> <br> product introduction: m14 spark plug thread easy to use and use. Package includes: 1*rethreaded faucet, 4*spark plug insert. It includes a thread tap and spark plug inserts, which is a good tool for repairing damaged spark plug threads and extending the service time of spark plugs.