Serious about mechanics tools? So are we. You'll see it in the details, in the patented designs and in the little extras that you’ll appreciate. Details like spiral-machined ratchet handles. Chrome Vanadium sockets with center holes punched for extra working depth. Universal joints assembled with adjustable set screws instead of rivets.  And all Powerbuilt tools meet or exceed the standards set by the US Government and American National Standards Institute (ANSI ). And Powerbuilt products are backed by a lifetime warranty and supported by fast, professional customer service when product repair or replacement is needed.