General description The Draper 16mm Hi-Torq Metric Flexible Head Ratcheting Combination Spanner features a flexible head that allows for movement through 180°, requiring only a 5° movement to turn fasteners. This design is particularly useful in confined spaces. The spanner is forged from chrome vanadium steel, which is hardened, tempered, chrome plated, and fully polished for durability and ease of use. Technical specifications Size: 16mm Material: Chrome vanadium steel Head movement: 180° Minimum movement to turn fastener: 5°