Ron, You would not have experienced the zing (more accurately described as a sizzle) with the softer material of the standard bridge pin. After the drill rod experience, I too would not use drill rod as a bridge pin, although I have used common nails on occasion. They are remarkably suitable as bridge pins. Roger Gable -----Original Message----- From: Ron Nossaman Sent: Saturday, February 09, 2013 9:05 AM To: pianotech at ptg.org Subject: Re: [pianotech] question about agraffes and uprights On 2/9/2013 10:40 AM, Roger at Integra.net wrote: > Ron, > I was one of those technicians who tried using water hardened drill rod > as a bridge pin because of the almost unlimited sizes available to > reduce the amount of "drill out" of the bridge cap to facilitate the > next larger size. Ed McMorrow told me that he experienced the same zing > years ago. Okay, I've just never experienced it, but then I've always used garden variety supply house bridge pins, and intend to continue to. Ron N
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