This professional pliers set is made from high carbon steel with a hardness rating of 42HRC, delivering excellent durability and resistance to wear and deformation. The tools feature ergonomic dual-color Tpr handles that provide a comfortable, stable grip while preventing odor or chemical reactions when exposed to rust-preventive oil. Advanced heat treatment, including reinforcement of high-stress areas such as cutting edges, enhances strength, corrosion resistance, and long-term reliability even in humid environments. The comprehensive set includes slip joint pliers, long nose pliers, diagonal cutters, groove joint pliers in multiple sizes, linesman's pliers, and an adjustable wrench to handle a wide range of tasks. A durable tool bag keeps everything organized and portable, while the adjustable groove joint pliers ensure secure gripping of various shapes and sizes for precise work.