This 1/2" square drive socket features an 18 mm wrench width and a 17 mm deep engagement, providing a precise fit for hexagonal nuts. Its robust metal construction and smooth matte finish ensure durability and reliable torque transfer, suitable for impact screwdrivers in professional mechanical applications. Key features: - 1/2" square drive connection - 18 mm wrench width with 17 mm depth - Length of 78 mm for extended reach - Metal construction with surface protection - Compatible with impact screwdrivers for enhanced performance