Expert Quality, Crescent - Type Wrenches Manufactured From Chrome Vanadium Steel Hardened And Tempered With Black Phosphate Finish, Polished Profile And Jaws. Jaws Offset At 22°. The 150, 200, 250 And 300mm Sizes Have A Graduated Scale On The Fixed Jaws. Suitable For Use In Areas Where Chemicals And Chrome Plate Can Give Off Poisonous Fumes. Display Packed.