The 21mm socket is a common wheel nut size on many commercial vehicles and larger cars, making it essential for fleet maintenance and roadside assistance. Cold-forged from Chrome Vanadium steel, this socket delivers professional strength with the WallDrive® configuration that grips fastener flats for superior torque transfer. The knurled ring ensures secure handling with greasy fingers, whilst the robust construction withstands the demands of frequent wheel changing operations. Features and Benefits: • 21mm hexagon - commercial vehicle size • WallDrive® reduces fastener rounding • Knurled ring for positive control • Chrome plated dual finish • Hardened and tempered for strength • Lifetime guarantee for confidence Specifications: Brand: Premier Depth: Standard Drive: 1/2"Sq Material: Chrome Vanadium Nett Weight: 0.00kg Size: 21mm

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