Folding spanner: Super-strong, ultra-light, and totally non-sparking Redco wrenches are made from the same special anodized alloy aluminum that is used in the Aerospace industry. Folding pocket spanners are available to fit up to 6″ hose couplings. Features a poitive action auto-locking hinge. 1/2″ W x 1-7/8 gas cock shut off designed for maximum leverage. Folds to 6-1/2″, opens to 11-3/4″.