The bahco sb7800sm 27 is a 27mm hexagon socket with a 1 2 inch drive, designed for heavy duty applications on commercial vehicles, construction equipment and industrial machinery. This larger size is essential for working with substantial axle nuts, drivetrain components and heavy structural fasteners. Engineered with bahco's dynamic drive profile, this socket provides enhanced efficiency and exceptional grip on fasteners, ensuring secure engagement when working with larger bolt heads. The high performance alloy steel construction offers the strength required for demanding professional applications, whilst the highly polished finish delivers both aesthetic appeal and effective corrosion protection. Designed for hand operation only, this socket works with standard 1 2 inch drive ratchets and breaker bars, though the larger size benefits from extended handles for additional leverage. Features and benefits bull 27mm metric size for heavy duty vehicle and equipment applications bull dynamic drive profile ensures secure engagement on larger fasteners bull high performance alloy steel construction bull highly polished corrosion resistant finish bull 1 2 inch square drive for universal compatibility bull hand operation design for controlled torque application specifications socket type hex size mm 27