ER Spanners is a front open wrench with a movable jaw. This movable jaw feature allows the spanner to be used with different sizes of fastener head such as nut, bolt, screw etc. rather than just one fastener size. ER Spanners are especially crafted at production unit of vendors to meet the demand and growing requirements of wrenches in the industries inclusive of repair & service industries, construction industries and textile industries. These spanners are made up high quality of raw materials and components under the assistance of expertise panel.