The 3/8 Dr. Metric Crowfoot Wrench Set is a heavy-duty tool crafted from Chrome Vanadium Steel, designed for exceptional durability and performance in demanding applications. Featuring a phosphorizing finish for enhanced corrosion resistance, this wrench set includes 10 open-end metric sizes (10-19mm) ideal for precision work in tight spaces. Perfectly compatible with 3/8" drive ratchets, extension rods, and torque wrenches, it offers versatile use in battery assembly, energy storage systems, and other critical新能源 (new energy) industry tasks, ensuring reliable torque control and damage-free operation. The set comes with a sturdy plastic tray for organized storage and quick tool selection, making it an essential addition to any professional toolkit.More