Draper extending reversible ratchet with a 3/4\" square drive The Draper 16822 is an expert quality 3/4\" square drive extending reversible ratchet. The ratchet is manufactured from chrome vanadium steel hardened, and tempered. 48 tooth ratchet with push-button to allow the handle to extend from 515 (Minimum) to 790mm (maximum). It has a forward/reverse selector with a spring-loaded ball bearing for secure socket holding.  Features: Manufactured from chrome vanadium steel hardened, and tempered  48 tooth ratchet with push-button to allow the handle to extend from 515 (Minimum) to 790mm (maximum) Forward/reverse selector with spring-loaded ball bearing for secure socket holding Specification: Extends: 515-790mm Drive: 3/4\" square