- Versatile 5-Level Design: The step wrench features five key sizes—3/8, 1/2, 3/4, 1-1/4 inch, and 21 mm—allowing you to tackle a range of fasteners with precision. The continuous groove enhances grip and usability. - Compatibility: This wrench is designed to seamlessly fit any 1/2 inch ratchet (12.5 mm), ensuring that it can be easily integrated into your existing tool set. - Durable Construction: Made of chrome vanadium steel, this step wrench offers optimal dimensional accuracy and high hardness, ensuring longevity and resilience under heavy use. - Wide Range of Applications: Ideal for various tasks including pipe connections, radiator assemblies, automotive accessories, and more. Your step wrench is perfect for the installation and removal of radiator valves, thermostats, return fittings, drain fittings, and tap extensions. - Practical Use Scenarios: 1. Use this wrench in your workshop for efficient assembly and disassembly of heating system components. 2. Great for plumbing tasks, where precision in tightening or loosening connections is crucial. 3. An essential tool for automotive maintenance, particularly when working with nuts and bolts in tight spaces. This step wrench is a reliable addition to any toolbox, enhancing your productivity with its robust design and extensive functionality.