We've created a smaller, thinner socket surface that's stronger than a normal socket.  And the proof is in the engineering - it shows that what goes into our tools is just as strong as what you get out of them.



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Requested by Uncle Sam.
Invented by Snap-on.

When your country comes calling, you answer. That's what Snap-on did when the U.S. government faced the challenge of building a new line of military aircraft. These game-changing planes required smaller, lightweight fasteners that carried uniquely large torque loads - and they needed a tool strong enough to do the job. Snap-on delivered a thin-walled socket that supplied more power without slipping or rounding. We patented the Flank Drive, and created a tool the industry had never seen before.





1/4" flank drive  sockets

These sockets increase torque, and prevent fastener corners from rounding off.  With a thin wall design and uniform wall thickness, that means improved performance.

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