The Sealey 3/4" drive 21mm hexagon impact socket is tailored for medium-sized heavy-duty fasteners frequently encountered in commercial vehicle maintenance and industrial equipment servicing. This 21mm socket provides the ideal combination of drive power and fastener compatibility for demanding professional applications. Crafted from high-quality chrome molybdenum steel using drop-forged manufacturing processes, this 21mm impact socket offers exceptional strength and resistance to wear. The WallDrive® technology distributes force across the flat sides of fasteners, delivering superior torque transfer whilst protecting bolt heads from damage. Hardened and tempered for maximum resilience, it features a phosphate finish that provides excellent corrosion resistance in harsh working conditions. Engineered specifically for air impact wrench applications, this socket enables rapid, efficient work in busy workshop environments. The lifetime guarantee demonstrates Sealey's confidence in its professional-grade quality. Features and Benefits: • 21mm metric size perfect for medium heavy-duty applications • Chrome molybdenum drop-forged construction ensures long-lasting performance • WallDrive® technology minimises fastener damage and rounding • Hardened and tempered for superior strength under high-torque conditions • Phosphate finish delivers enhanced corrosion protection • Lifetime guarantee for professional peace of mind Specifications: Brand: Premier Depth: Standard Drive: 3/4"Sq Material: Chrome Molybdenum Nett Weight: 0.34kg Size: 21mm

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