Counter-bearing drag

[Dean May]

I use a similar set up and have my son hold the vacuum w/crevice tool at the
hole. Keeps debris clear and moves sufficient air across the bit that it
does not get dull.

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Wednesday, August 08, 2007 4:50 PM
To: Pianotech List
Subject: Re: Counter-bearing drag


> Hi Ron,
> I have always drilled the block outside the piano.
> Using a jig, so that a small back angle is there, and I have a stream of 
> air blowing on the bit, for cooling.

I do it in the piano, and double drill so I don't have to cool 
anything.


> I have forgotten. :-(
> 
> Do you have a modified drill press to drill the block, or do you do it 
> free hand?
> 
> John M. Ross

With this. Angle adjustable, and valve controlled air float on 
the bottom plank. It's a hovercraft.
Ron N