<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.5730.11" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><STRONG><FONT face=Arial>The largest Robertson I have is a #4, a solid black handle.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial>The yellow is a 0, green is a 1, red is a 2 and 3 is ?.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial>For really large ones, I have used a tuning lever tip wrench.</FONT></STRONG></DIV> <DIV>John M. Ross<BR>Windsor, Nova Scotia, Canada<BR><A href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=pianoforte@pianofortesupply.com href="mailto:pianoforte@pianofortesupply.com">Jurgen Goering</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, January 20, 2007 6:33 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: square drive screws.</DIV> <DIV><BR></DIV>Old Canadian pianos often have Robertson plate screws with a large square recess, almost 1/4". I am looking for a source for screwdrivers for these screws. Does anyone have any ideas? Who can custom make square tip drives or bits?<BR><BR><?smaller>Jurgen Goering<BR>Piano Forte Supply<BR>(250) 754-2440<BR><A href="mailto:info@pianofortesupply.com">info@pianofortesupply.com</A><BR><A href="http://www.pianofortesupply.com">http://www.pianofortesupply.com</A><BR><BR></BLOCKQUOTE><?/smaller></BODY></HTML>