This 18mm bi hexagon socket is designed for mid to large metric fasteners in automotive underbody work, drivetrain components, and general mechanical assemblies. The 18mm size appears frequently in suspension bolts, steering components, and various heavy duty applications. Manufactured from hardened and tempered chrome vanadium steel with a protective chrome finish, this professional socket delivers reliable torque transmission and excellent resistance to wear and corrosion. The chamfered end ensures positive fastener engagement, whilst the spring loaded ball bearing keeps accessories securely attached. Features and benefits bull 18mm socket size for drivetrain applications bull 1 2 square drive bull chrome vanadium steel hardened and tempered bull chrome plated for corrosion protection contents bull 1 x elora bi hexagon socket, 1 2 sq. Dr., 18mm