The Klein Tools Lineman's Insulating 4-in-1 Box Wrench is the only double ended 4-in-1 wrench on the market to meet the ASTM standard 1000V rating. It features a transparent handle that shows the metal ends of the wrench are not touching. The solid, durable wrench features four 12 point socket sizes: 1/2'', 9/16'', 5/8'', and 3/4''.

• Box Wrench meets the ASTM 1505-10 standard 1000V rating
• ''See-through'' insulating handle confirms metal ends are not connected
• 1/2-Inch, 9/16-Inch, 5/8-Inch and 3/4-Inch sizes in one tool; 12 point sockets
• Reverse ratcheting action by reversing switches on each end of the wrench
• Made in USA
• Textured grooves in handle prevent slipping
• Chrome plated finish resists corrosion