<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">In a message dated 1/26/2002 6:30:51 PM Pacific Standard Time, joegarrett@earthlink.net writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>Pin Block Drilling Speed/Dale </B><BR>
Date:1/26/2002 6:30:51 PM Pacific Standard Time<BR>
From:<A HREF="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</A><BR>
Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>
To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A><BR>
<I>Sent from the Internet </I><BR>
<BR>
Joe </FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"></BLOCKQUOTE><BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> I always use a good stream of air. It never smokes soI may be wrong about the speed . I'll check it tomorrow.<BR>
Thanks--------Dale</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"><BR>
Dale et al,<BR>
1200 to 1600 RPM! Whoa! I drill at the slowest speed on my radial drill<BR>
press, which is 750rpm. That speed is about 200rpm faster than is<BR>
recommended, but I compensate by cooling the bit with air. At 1200 to<BR>
1600rpm you'd need refrigerated air to keep the bit cool enough to have a<BR>
consistant sized bit/hole. The smoke must really boil. <G><BR>
When drilling Hard Woods, such as Maple or Beech, and especially when it's<BR>
Laminated, you need to drop the drill speed. This is gleaned from several<BR>
Woodworking tomes and also other techs recommendations. Well, that's MO<BR>
FWIW.<BR>
Regards,<BR>
Joe Garrett, RPT,. (Oregon)<BR>
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