2mm ball tip hex driver for use with OpenBeam.
Notice that lots of projects are starting to use more metric hardware? Even in the USA (one of the staunch metric hold-outs), projects like Makerbot are using metric hardware in their designs. Look, we're not here to debate which is the better engineering unit (coughthousandthscough), but to show off a new tool!
Unlike the regular 2mm hex driver, this one contains a ball-tip that that allows for up to 25 deg deflection off the screw's axis for driving. This makes the ball driver very useful for driving screws in tight spaces. Note: The drawback is that a ball end driver can't transmit as much torque, and will wear out faster. For final tightening of a screw, it is advisable to use the short end of a hex key. But even with these shortcomings, anybody who has used a ball-tip hex-driver will recognize it's great usefulness!