Kobalt Universal 8 Piece Spline Metric Standard Combination Wrench Set Courier Box board on board picket configuration for a board on board picket configuration for a modern look Whirlpool bathtub 59 allowing you to work in tight spaces where a socket can't fit Natural surface grind finish with a matte black finish that allows you to easily identify your Universal tools in your tool box or on your work bench Universal wrenches are constructed of chrome vanadium steel and heat treated for strength and durability Size callouts are hard stamped Meets or exceeds ASME specifications Hassle free lifetime guarantee 15 and 17 mm Specialized wrench design allows work on multiple types of fasteners including 6 point