<div> JD, <br> <br> Thanks for this understanding of the importance of the taper.<br> <br> <font face="Arial, Helvetica, sans-serif">Alan Eder</font><br> </div> <div> <br> </div> <div> <br> </div> -----Original Message-----<br> From: John Delacour <JD@Pianomaker.co.uk><br> To: Pianotech List <pianotech@ptg.org><br> Sent: Fri, 15 Aug 2008 9:20 am<br> Subject: Re: Center Pin<br> <br> <div id="AOLMsgPart_0_a034a15e-69f0-4df0-9d6b-a206579b67a5" style="margin: 0px; font-family: Tahoma,Verdana,Arial,Sans-Serif; font-size: 12px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> At 12:07 -0400 15/8/08, <a href="mailto:reggaepass@aol.com">reggaepass@aol.com</a> wrote: <br>  <br> >About those: A helper recently asked if there is a reason that they >are sharpened to a fine point (which does make them harder to get >back into the canvas case they come in). Thoughts? <br>  <br> The very gradual tapering of the point is most important so that no removal of the bushing can take place before the broach has passed through the bushings on both sides. The first part of the broach should be smooth so that by the time the roughened part enters the bushing the broach is perfectly concentric with the bushings. <br>  <br> JD <br>  <br> </div>  <div id='u8CACD42C6EFF03F-1308-2D64' class='aol_ad_footer'><FONT style="color: black; font: normal 10pt ARIAL, SAN-SERIF;"><HR style="MARGIN-TOP: 10px">It's time to go back to school! Get the latest trends and gadgets that make the grade on <A title="http://shopping.aol.com/back-to-school?ncid=aolins00050000000007" href="http://shopping.aol.com/back-to-school?ncid=aolins00050000000007" target="_blank">AOL Shopping</A>.</FONT> </div>