a 7pcs thread chaser metric thread restorer tool is a must - have for anyone involved in automotive rethreading. when you pick up this , you immediately notice high - quality construction. each thread chaser is crafted from heat - treated carbon steel with a black finish. this not only gives it a sleek and professional look but also provides excellent durability. hardness of steel, hardened to 45 - 55, means that it can withstand a great of wear and tear, ensuring an extended lifespan. you won't have to worry about tool corroding easily, thanks to its superior corrosion resistance. this comprehensive kit comes with seven different thread chaser tools. all of them are neatly packed in a storage case, which is very convenient for keeping your tools organized. whether you are working in a professional auto repair shop or just doing some diy automotive work at home, having a well - organized tool can save you a lot of time. thread restorer kit is designed with a square drive, which adds a lot of flexibility and convenience. you can easily pair it with ratchets, allowing for smooth operation even in tight spaces. this is a huge advantage, as many automotive repairs often require working in confined areas. with this tool, you can work more efficiently and reduce operator fatigue. let's talk about wide application of this thread repair kit. m10 x 1.00/m14 x 1.25 combination tool is extremely useful for spark plug repairs. it offers two sizes in one tool, which is very practical. m12 x 1.25 and m18 x 1.5 tools are great for cleaning threads of two common o2 sensor sizes. if you have limited access to a particular area, m14 x 1.25 limited access long - length tool is perfect solution. and m20 x 1.5 and m22 x 1.5 tools are ideal for cleaning threads on and soot sensors. product has a main color of black, which gives it a very stylish and industrial look. main material, carbon steel, is known for its strength and reliability. product has a depth of 9.31 in, a width of 5.4 in, and a height of 3.1 in. it weighs 1.65 lb, which is a reasonable weight for a tool of this kind. package has same dimensions as product, with a weight of 1.77 lb. when using this thread chaser , you'll find that it makes rethreading process much easier. high - quality tools that you can achieve precise results every time. whether you are a professional mechanic or an amateur automotive enthusiast, this 7pcs thread chaser metric thread restorer tool is a great investment for your tool collection.in world of automotive rethreading, having right tools is crucial. this 7pcs thread chaser metric thread restorer tool is a top - notch choice. thread in this are made from heat - treated carbon steel with a black finish. this finish not only gives tools a sleek look but also provides outstanding durability and corrosion resistance. comes in a storage case, which is a great feature. it keeps all tools organized and protected. you can easily find tool you need when you're working on a repair job. whether you're at a professional repair shop or doing some work at home, having an organized tool can save you a lot of time and frustration. thread restorer kit is designed with a square drive. this design allows for easy connection with ratchets, which is very useful when working in tight spaces. you can operate tools smoothly, even in areas where it's difficult to reach. this feature improves work efficiency and reduces amount of effort required from operator. wide variety of thread chaser sizes in this makes it suitable for a wide range of automotive thread repair applications. m10 x 1.00/m14 x 1.25 combination tool is ideal for spark plug repairs. it offers two sizes in one tool, which is very convenient. m12 x 1.25 and m18 x 1.5 tools are great for cleaning threads of common o2