The Proto B329804 7/16 in. Combination Wrench features a 6-point box end with the TorquePlus system, designed to maximize contact with fastener flats and keep loads off corners — ideal for stubborn or damaged fasteners. The patented Anti-Slip Design (ASD) open end uses locking grooves and arched contact surfaces to prevent slipping and reduce fastener rounding under heavy torque.
A satin finish delivers corrosion resistance while providing a slip-resistant grip for confident use in industrial, MRO, and maintenance applications. Built to Proto's professional-grade standards, this wrench is a reliable choice for mechanics and tradespeople demanding durability and precision.