For the past 20 years I have been using an "I" drill bit (.272) , air cooled. I use a pin driving fluid and get initial torque readings at 140 - 160 inch pounds. After chipping and several tunings it settles down to 110 - 130 inch pounds torque. No failures yet. I do at least 10 pinblocks a year this way. Steve Grattan, Associate Lost Chord Clinic ----- Original Message ----- From: "Paul Chick (Earthlink)" <tune4@earthlink.net> To: "Pianotech@Ptg.Org" <pianotech@ptg.org> Sent: Thursday, July 22, 2004 10:19 AM Subject: Delignet ? > List members and pin block installers: > > What drill size do you like for a 2/0 pin when using Delignet for the block? > > Paul C > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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