Crafted from steel, this adapter is wear resistant and pressure resistant, ensuring durability performances secure installation with our bit adapter, engineered for stability and ease of use in any project Ideal for professional technicians, enthusiasts, and users who frequently switches tool for a variety of tasks including home repairs, factory assembly, and automotive maintenance, offering multiple work environment convert 4mm Bit to 6.35mm with our bit adapter, enhances tool compatibility and work efficiency, Manufacturer: ERRORY