Abstract: A system and method for updating power supply voltages due to variations from aging are described. A functional unit includes a power supply monitor capable of measuring power supply variations in a region of the functional unit. An age counter measures an age of the functional unit. A control unit notifies the power supply monitor to measure an operating voltage reference. When the control unit receives a measured operating voltage reference, the control unit determines an updated age of the region different from the current age based on the measured operating voltage reference. The control unit updates the age counter with the corresponding age, which is younger than the previous age in some cases due to the region not experiencing predicted stress and aging. The control unit is capable of determining a voltage adjustment for the operating voltage reference based on an age indicated by the age counter.

Abstract: An apparatus for rapid installation of threaded fasteners is provided. The apparatus includes a drive portion configured for being received by a rotary tool, a bit holder extending from the drive portion and configured for receiving a tool bit, the bit holder defining an elongate portion, and a sleeve configured for translatable movement along the elongate portion. The sleeve has a first extended position in which an end of the sleeve extends substantially beyond the tool bit and a retraction position in which the sleeve does not enclose the tool bit. A spring biases the sleeve into the extended position. Pressing of an end of the sleeve against a working surface imparts translation of the sleeve in a direction from the extended position towards the retracted position.

Abstract: An apparatus for rapid installation of threaded fasteners is provided. The apparatus includes a drive portion configured for being received by a rotary tool, a bit holder extending from the drive portion and configured for receiving a tool bit, the bit holder defining an elongate portion, and a sleeve configured for translatable movement along the elongate portion. The sleeve has a first extended position in which an end of the sleeve extends substantially beyond the tool bit and a retraction position in which the sleeve does not enclose the tool bit. A spring biases the sleeve into the extended position. Pressing of an end of the sleeve against a working surface imparts translation of the sleeve in a direction from the extended position towards the retracted position.

Abstract: An apparatus for rapid installation of threaded fasteners is provided. The apparatus includes a drive portion configured for being received by a rotary tool, a bit holder extending from the drive portion and configured for receiving a tool bit, the bit holder defining an elongate portion, and a sleeve configured for translatable movement along the elongate portion. The sleeve has a first extended position in which an end of the sleeve extends substantially beyond the tool bit and a retraction position in which the sleeve does not enclose the tool bit. A spring biases the sleeve into the extended position. Pressing of an end of the sleeve against a working surface imparts translation of the sleeve in a direction from the extended position towards the retracted position.