<HTML>In a message dated 1/26/2002 2:06:10 PM Pacific Standard Time, A440A@AOL.COM writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:Re: pin comparisons Date:1/26/2002 2:06:10 PM Pacific Standard Time From:<A HREF="mailto:A440A@AOL.COM">A440A@AOL.COM</A> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> Sent from the Internet     Ed</BLOCKQUOTE>    Now I'm curious. If I used any thing smaller  than .250 to drill no. one pins in the buldoc blocks I'd be hatin life. Are you perhaps running the drill speed slower or are you just stronger than Me.?Slower speed usually nets a looser fit. I've been currently running drilll speeds of 1200 to 1400 rpm.      I guess we should also factor in the climate variables from Calif. to Nashville. We don't get the super low humidity for prolonged periods how bout you. Or Humid for that matter.      I 've been paying closer attention to the emc the block is drilled at . I don't want to drill it on either end of the emc spectrum but in the 40 to 50% range unless it's going to the desert.      >>>>>>>Dale Erwin <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> I wrote: <<   I used 1/0 pins from Pianotek in a Steinway plank.  I > drilled > it with a new "C" bit in the bass and middle section, switching over to the > > "D" bit for the last two octaves. Dale asks: >>>What is the decimal equivelents for these bits?     The C is .242", the D is .246" and the E is .250".   I have used an E at the top, thought it left too little margin for long term safety.  Regards, Ed  </BLOCKQUOTE> </HTML>