Proto J1220BASD 5/8 12-Point ASD Combination Wrench

FEATURES:
•Non-reflective ProtoBlack™ finish for use where non-plated products are required.•12 point box end allows for fine indexing, helping to improve speed and access. Fits 4, 6, and 12 point fasteners.•Anti-Slip Design (ASD) open end. -Patented locking grooves help prevent the wrench from slipping off the fastener when turning.-The arched surfaces are designed to spread the contact forces over a greater area.-Loads are kept off the corners of the fastener which helps prevent fastener rounding.•Box ends incorporate the TorquePlus™ system.•Proto® TorquePlus™ wrenches are ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials.•The TorquePlus™ design is a high performance drive configuration which allows for quick and easy wrench engagement to the fastener flats, not the corners.•The TorquePlus™ configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the box end, minimizing slippage.•The TorquePlus™ internal design minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners.