You'll use this for turning valves on gas and electric meters, taps, radiators, industrial outdoor water hose and more. It has 4 different fittings: large square, small square, round with prongs, and triangular. Large square: almost 9/16" diameter of circle, almost 3/8" length of one side of square Small square: 7/16" diameter of circle, 1/4" length of one side of square Round with prongs: 9/16" diameter of circle, slightly less than 1/4" diameter Triangular: diameter of circle 9/16", 3/8" of one side of triangle

This key wrench is made of sturdy zinc alloy, and is shaped for maximum torque

Each end has a different shape: large square, small square, round with prongs, and triangular

Use this key wrench for gas vavles, water valves, meter boxes and more

This key wrench is an excellent tool for use in an industrial area

This 4 way key wrench measures 3 x 3 inches