The 450mm Draper Expert Black Adjustable Spanner is the largest size in this professional range, engineered for the most demanding heavy industrial applications. This crescent-type wrench is manufactured from chrome vanadium steel that's been hardened and tempered to deliver maximum strength and durability, with a black phosphate finish and polished profile and jaws for dependable performance under extreme conditions. The substantial 450mm length provides outstanding reach and leverage for the largest fasteners and most stubborn fixings encountered in heavy industry. The 22° jaw offset proves invaluable when accessing large-diameter pipework, plant equipment, and industrial machinery. Particularly suitable for use in areas where chemicals and chrome plate can give off poisonous fumes, this extra-large spanner is essential for plant maintenance engineers, industrial fitters, and heavy equipment mechanics working in refineries, chemical plants, and other hazardous industrial environments