This reversible ratchet from Draper is a staple in any toolbox The Draper 50687 Round Head Reversible Ratchet is manufactured from chrome vanadium steel that has been hardened and tempered with a polished finish for long life and resistance. This 45 tooth ratchet has a 1/2\" square drive measuring 250mm in length. Features: Manufactured from chrome vanadium steel hardened and tempered, with a polished finish 45 tooth ratchet with forward/reverse selector Spring-loaded ball bearing enables secure socket holding Specification: Drive: 1/2\" Length: 250mm Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications