[pianotech] Size of Pinblock Drill bit?

[Ed Foote]

I have made my own pinblock reamers from bits in which I grind away all the cutting edges for the first inch or so of the bit.  It makes for an accurate pilot without chewing a sideways hole on the way in.  Takes about 60 seconds with a Dremel tool.  
Regards, 


Ed Foote RPT
http://www.piano-tuners.org/edfoote/well_tempered_piano.html



-----Original Message-----
From: Jim Ialeggio  
    
    I'm actually thinking of having WL Fuller regrind these so that the    1st 1" is a 1/4" non-cutting pilot step drill... but haven't had    that done that yet.
    
    Jim Ialeggio 
    
 

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