1. Specification for hand-operated square drive socket wrenches and accessories. (31st August 1988) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (44 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for hand operated square drive socket wrenches and accessories. (15th October 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗