General description Double ended, reversible ratchet ring spanner featuring an innovative design that allows for 8 different Bi-Hex (12pt) sizes in one tool, ranging from 8mm to 19mm. This spanner is ideal for use in tight areas due to its 90 teeth ratchet mechanism and provides both space and weight savings, making it perfect for emergency tool kits. Technical specifications Sizes: Bi-Hex (12pt) x 8, 10, 12, 13, 14, 15, 17, 19mm Overall length: 242mm Ratchet mechanism: 90 teeth Material: Fully polished chrome vanadium Usage Simple lever to change direction as required.