The 78mm extended one-piece socket design allows for easy maintenance work even in narrow and tight spaces. PREMIUM & DURABLE MATERIAL: Upenjok 8-piece XZN triple square spline socket set is made of high-quality CrMo steel and treated with a black phosphating coating on the surface, which can not only withstand high-strength impacts, but also has excellent durability and super corrosion resistance, extending the life of this tool set.
