【Versatile Tool Design】Features 7 different head sizes from 6mm to 19mm, providing complete coverage for various screw types in household repairs and professional construction tasks 【Wide Application Range】Perfect for electronics assembly, furniture setup, and automotive repairs with its standard 6.35mm shaft and practical 10cm / 6.5cm sizes 【Quick Change Tips】Allows fast bit replacements without needing extra tools, significantly improving efficiency for technicians working on urgent repair projects 【Effective Rotational Power】Delivers strong turning force to handle difficult or rusted screws, ideal for mechanical servicing and demanding equipment maintenance 【Durable Alloy Steel Build】Made from reinforced alloy substance with enhanced resistance to wear, offering long lasting execution for repeated technical and industrial use compared to regular steel tools, Manufacturer: ERRORY