Includes 1 / 2 ", 9 / 16 ", 5 / 8 ", 11 / 16 ", and 3 / 4 " sizes to handle various fastener types Versatile for mechanical assembly, equipment maintenance, and home appliance repairs Crafted from high strength steel for exceptionally durability and 3x longer life than standard steel Resists wear and, ideal for automotive repair and industrial maintenance Accurately machined hexagonal openings ensures secure grip on fasteners Prevents slippage and damage during use, suitable for professional and home users Full body heat enhances hardness and impacts resistance Withstands high pressure environments while maintaining, reducing tool failure rates 77mm elongated socket provides easy access to tight spaces and complex components Perfect for professional mechanics and diyer enthusiasts tackling challenging repairs, Manufacturer: TFAOYS