Firm Lock: The wrench securely locks objects with an antislip pull stud, delivering a laborsaving solution and reducing the chance of slip during use. Knurled Handle: Slipproof knurled handle design provides an easy, secure grip and improved control in various working conditions. Humanized Design: Designed for convenient and quick disassembly of the pull stud, helping to save time during maintenance and reassembly. Material: Made of 42CrMo alloy steel with galvanization for longevity, corrosion resistance, and durable service life. Use scenario 1: Automotive or equipment maintenance where secure locking of components with a pull stud is required during installation or removal, ensuring stability and reducing effort. Use scenario 2: Workshop or industrial environments that demand reliable grip and precise control during repetitive tightening and loosening tasks. Use scenario 3: Field service or onsite repairs where fast pull stud disassembly minimizes downtime and improves efficiency.