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.
2. Turn the tube one-quarter turn with your fingers and pull straight down with both hands. If the tube does not remove easily, turn one-half-turn in the opposite direction and pull again. If the tube will still not remove easily, try pushing it to one side. Some fixtures use a spring mechanism within the socket.