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.
Trick aerator - how can it be unscrewed, pls? The faucet in my kitchen has a trick, though rudimentary, aerator. I need to replace it with one that controls flow better to have better water consumption. However, I can't get it off. The aerator turns and turns but it can be unscrewed.