The Wright Drive design distributes contact stress more effectively than any other wrench system. With the stress spread over a larger contact area and away from the corners, Wright Drive improves fastener torque load while decreasing rounding and distortion of the fastener.

• Socket Nominal Size: 9/16"
• Drive Size: 1/2"
• Overall Width at Wrench End (Dd): 15/16"
• Overall Width at Socket End (Ds): 15/16"
• Minimum Broach Depth: 21/64"
• Meets or exceeds ASME B107.110
• Made in the USA