Expert Quality, head and shaft manufactured from chrome molybdenum steel hardened, tempered, chrome plated and polished for corrosion protection. Hinged joint head and knurled grip. Extending handle locks in any position between 400mm (Minimum) and 600mm (maximum) and is carbon steel hardened, tempered and chrome plated. Spring - loaded ball bearing for secure socket holding. Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications Features and BenefitsExpert QualityLocking handleExtends from 400 to 600mmChrome vanadium steel hardened, tempered, chrome plated and polished Contents 1 x Extending Breaker Bar, 1/2" Sq. Dr., 400 - 600mm