A voltage tolerance measuring apparatus configured to measure voltage tolerance of a motherboard includes a first connector configured to connect with a power connector of a computer power supply, a second connector configured to connect with a power connector of the motherboard, and a measuring circuit having an adjustable direct current power supply and a switch circuit. Each CSP takes a set of streams of input data and outputs a set of streams of data. Choice selections entered by means of the touch screen menu or by means of the audio menu are marked on the front and back sides of the document in marking spaces corresponding to the selected choices, and the document is returned to the user in a form which enables the user to visually confirm that his or her selections have been marked. The opening within the body surrounds a portion of the elongate element. Applicant also provides a novel method for manufacturing an endodontic reamer, which consists of using a two piece mold and placing a wire blank between the mold, followed by forcing the mold together, under compression, against the wire blank, to deform the blank into the shape of the mold parts. , R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.