The Britool BRIE031703B 3/8in Drive hinged head ratchet has a 72 tooth mechanism and a 5 increment. The ratchet has an ergonomic bi-material handle for comfort and the compact and the angled head is finished in high chrome. Dimensions Length 234.2mm. Weight 380g. Head Diameter 43.6mm ISO 3315, DIN 3122, ISO 1174-1.