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.
Uni-directional electric motors run just one way: clockwise (CW) or counterclockwise (CCW) but not both. In many applications the equipment driven by the electric motor will not work properly unless the motor drive shaft spins in a pre-determined direction: clockwise or counter-clockwise.