<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV><DIV>On Apr 16, 2007, at 9:44 AM, Willem Blees wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">I'm sorry, but I wrote down the wrong numbers. Instead .02 - .001", it<SPAN class="Apple-converted-space"> </SPAN></FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">should have read .009 - .001". And those were educated guesses on<SPAN class="Apple-converted-space"> </SPAN></FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">where the line was on my micrometer.<SPAN class="Apple-converted-space"> </SPAN></FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">Wim</FONT></P> </BLOCKQUOTE></DIV>Hi WIm,<BR><DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>I'm going to assume you actually mean .0009 - .001". I doubt very much the variance was as much as 9 thousanths of an inch. That would be bizarre music wire, indeed! (since there is a difference of one thousandth between sizes). If you are measuring to those tolerances, you need a quality micrometer, with a good friction stop, and with a venier scale or a digital readout. Educated guesses aren't good enough. If you lack a good friction break, technique of turning can give a variance of at least as much as .001". Music wire does vary a bit, but what you are claiming is far outside my experience.<BR><DIV><DIV>Regards,</DIV><DIV>Fred Sturm</DIV><DIV>University of New Mexico</DIV><DIV><A href="mailto:fssturm@unm.edu">fssturm@unm.edu</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV></DIV><BR></DIV><DIV><BR class="khtml-block-placeholder"></DIV></BODY></HTML>