Pin Block Drilling Speed/Dale

[Erwinspiano@AOL.COM]

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In a message dated 1/26/2002 6:30:51 PM Pacific Standard Time, 
joegarrett@earthlink.net writes:


> Subj:Pin Block Drilling Speed/Dale 
> Date:1/26/2002 6:30:51 PM Pacific Standard Time
> From:<A HREF="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</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 
> 
>  Joe 

    I always use a good stream of air. It never smokes  soI  may be wrong 
about the speed . I'll check it tomorrow.
         Thanks--------Dale

> 
> Dale et al,
> 1200 to 1600 RPM! Whoa! I drill at the slowest speed on my radial drill
> press, which is 750rpm. That speed is about 200rpm faster than is
> recommended, but I compensate by cooling the bit with air. At 1200 to
> 1600rpm you'd need refrigerated air to keep the bit cool enough to have a
> consistant sized bit/hole. The smoke must really boil. <G>
> When drilling Hard Woods, such as Maple or Beech, and especially when it's
> Laminated, you need to drop the drill speed. This is gleaned from several
> Woodworking tomes and also other techs recommendations. Well, that's MO
> FWIW.
> Regards,
> Joe Garrett, RPT,. (Oregon)
> 


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