HighlightsCr-Mo Industrial-Grade Alloy Steel - Crafted from premium impact-grade alloy steel, our 1" impact socket set with Cr-Mo industrial-grade alloy steel offers exceptional enhancements in impact resistance and absorption. Through the utilization of vacuum heat treatment, the steel undergoes rapid heating and cooling processes, resulting in a polished and highly durable surface. This makes it well-suited for a wide range of operational environments.High Torque - Distinguished by its hexagon