High quality adjustable spanner. Manufactured from chrome vanadium steel. 18" (455mm) Total Length. Adjustable 0 to 55mm Jaw Opening. Thumbwheel adjustment. Metric Measurements Extra long adjustable heavy duty adjustable spanner. Suitable for heavy duty uses such as in the workshop, industrial engineering, farm, rail yards and ship yards. Made from drop forged and heat treated steel for extra strength and durability. Specifications: -18'' adjustable -precision polished -50mm jaw opening -450mm in length