The Master mechanic 15" adjustable wrench is a needed essential in home improvement tasks. For fastening nuts and bolts with its 1.7" maximum jaw opening, the Master mechanic adjustable wrench will help users with a range of applications where adjustments are needed. Made of heat-treated forged steel, this wrench is also nickel plated for durability. The wrench's cushion grip handle offers comfort to user's hands. The Master mechanic adjustable wrench meets and exceeds all ANSI standards.