[pianotech] Renner hammer boring jig

David Love davidlovepianos at comcast.net
Sat May 2 07:01:10 PDT 2009


It will bore vertical as well as grand hammers.  There is a rake on some
grand hammers as well.  The rake angle is achieved by changing the angle of
the drill press platform.  If you are using a small drill press with a fixed
platform you have to shim up one side of the boring jig.  The rake angle is
not adjustable on the jig itself.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Mark Dierauf
Sent: Saturday, May 02, 2009 6:32 AM
To: Pianotech
Subject: [pianotech] Renner hammer boring jig

Does anybody know if this jig will bore vertical hammers as well as 
grands? I'm particularly wondering if it is capable of boring the 
extreme rake angle found on the old S&S uprights. Thanks,

- Mark






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