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: 2-1/2"
• Drive Size: 1"
• Overall Length (L): 4.88"
• Overall Width at Wrench End (Dd): 2-7/16"
• Overall Width at Socket End (Ds): 3-19/32"
• Minimum Broach Depth: 1-3/8"
• Meets or exceeds ASME B107.110
• Made in the USA