Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications 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. Display packed on plastic header.