Apr. 1, 2015. TDK Corporation has announced that its Hong Kong-based HDD head manufacturing wholly owned subsidiary, SAE Magnetics (H.K.) Ltd.
You use a wrench to screw, or unscrew a bolt. A screwdriver is for screws. Either way you turn it left. Some bolts have reverse threads and would turn the other way to unbolt.
up vote 3 down vote. That appears to be a standard flip-up chuck, and it claims to be universal. If using on a Schrader valve you just push it on and flip up the lever. If using on a Presta valve you unscrew the knob on the Presta valve first, then push on and flip up the lever.