This Teng Tools Industrial wrench is made of chrome vanadium steel for increased strength and durability. It exceeds international standards ISO 6787-1976, ASME B.107.8M-1996, BS6333-1995, DIN 3117-1988 and JIS B4604-1976. Graduated markings on the jaw allow the size of the fastening to be accurately measured and the wrench to be set at the right size. The 15 degree jaw angle allows the wrench to be used in narrow spaces as only 30 degrees turning is needed. The wider jaw opening increases the range of bolt sizes to be worked on. It is non-protruding on the moveable jaw end, which gives better action when space is limited. The handle provides a comfortable hand fit.The TEN4008 Adjustable Wrench has the following specifications: Length: 600mm (24 inch). Capacity: 60mm. Capacity AF: 2.3/4 inch.