<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #ffffff"> <DIV> <DIV>In a message dated 1/20/2007 4:05:20 PM Pacific Standard Time, dave@davispiano.com writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV><FONT face=Arial>I picked this up at a chapter tool swap. I'm the third owner and it's never been used. It kills me to flaunt my ignorance, but what is it, and how does it work?</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV></BLOCKQUOTE></DIV> <DIV><FONT face="Bookman Old Style">Dave,</FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">It's a hammer head boring jig. Clamped in a drill press vise, it holds a hammer head at an angle set by the gauge you see on the round part, and a rake adjusted by pivoting the little sticky-outy part (which is also where the hammer rests. </FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">The Renner head boring jig is more elegant, but I have drilled many many sets on one of the Brooks jigs. I use it for grand hammers, but I suppose you could use it for verticals by setting the travel of the drill press quill.</FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">Bob Davis</FONT></DIV></BODY></HTML>