1. and reliable: Made of chrome vanadium steel material, this 29piece core ratchet socket kit is extremely durable and can withstand high torques. The fully polished chrome finish provides excellent corrosion protection for longlasting reliability. 2.Efficient: The wrench kit contains a variety of sockets in multiple sizes, so you can tackle each screw with ease. It is suitable for handling hexagon, square and other 6 types of special screws, making it perfect for repairs, car repairs and DIY projects. 3.Comfortable and easy to use: the ratchet handle is designed for comfort and efficiency, which makes it easy to switch between different sockets. The kit comes with a square joint, extension rods, spinner handle, flexible extension, adapter and batch socket, providing convenience and ease of use in various applications. 4.Wide application: this wrench set is suitable for various scenarios, devices, computers, bicycles, cars, lawn equipment, machinery and types of mechanical maintenance. It is a tool set that can handle various tasks, making it a reliable companion for professionals and DIY enthusiasts alike. 5.Complete set: the 29piece core ratchet socket set contains 11 sockets (5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13mm), 10 bits (FD 457, PH12, PZ12, T1015), 1 ratchet wrench, 1 square joint, 2 extension rods, 1 spinner handle, 1 flexible extension, 1 adapter and 1 batch socket. It is a comprehensive kit that meets your repair and maintenance requirements.