Production Tool Supply has a web-only discount running on a pair of slick sets of ball-end Allen keys, inch an metric ranging from 0.050″ to 3/8″ and 1.5mm to 10mm. For anyone unfamiliar with this ball-end style, they let one end of the key sit in the fastener at an angle — a great advantage for starting fasteners in cramped spaces.
At a bit under $15, these are hard to pass up if you don’t have a set. They take some getting used to, but these tools are a real headache-saver.
Bondhus Ball-End Hex Key Set [PTS Tools]