David, Usually they are just dirty. Cloth that has been lubricated gums things up, so clean with denatured alcohol or Naptha and they should work good again. Don Mannino ----- Original Message ----- From: Chuck Behm To: pianotech at ptg.org Sent: Saturday, December 26, 2009 1:33 PM Subject: [pianotech] broaches for flange bushing >Hello List, Do the roughened areas of broaches used for flange bushing need to be sharpened periodically? I?m in the middle of re-pinning a set of hammer flanges and it seems some of the broaches cut better than the others. If yes, what?s the best way to sharpen them. Thanks, David Weiss< David - Don Mannino has a nice write up about this in the Tips Tools & Techniques section of the January issue of the Journal. Turn to page 9 when you get your copy. Chuck Behm -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091226/951c580c/attachment.htm>
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