Proto JSCV09 Features

• Black chrome finish is corrosion resistant and visually distinctive
• Fractional spline wrenches can be used on fractional 4, 6, 12 point, spline and Torx fasteners
• The chrome-vanadium switch lever allows for easy changes in turning direction which helps improve speed
• 15 angled offset box end helps keep shank clear of obstructions
• 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