Screamdriver is a torque controlled screwdriver.
When the correct setting of tightness is reached the screwdriver starts screaming via a set of micro speakers contained in the handle. If you try to overtighten the screw, the sound gets louder, and more unbearable.-- xenzag, Mar 11 2015 This reads like the output of a dreamscriver.-- pocmloc, Mar 11 2015 random, halfbakery