The proper sized bit will depend on the type of block and the pin you have in mind use for replacement. Id have to go look in the shop but I think when Im pulling out a #2 pin from a Steinway block I drill it out with a J bit (.277 if I recall correctlythe bit that Schaff calls its #3 bit) and repin with a 3.5 tuning pin (lo torque if I can get it). Diamond makes the ½ sizes and thats what I tend to use. The sizing I havent found to be that big a problem with the Japanese pins but I like the color on the Diamond pins better and when restringing without replacing the block (which I do sometimesas Israel mentioned sometimes cost matters to the customer) I often get into either ½ sizes or lo-torque pins which restricts you to Diamond anyway. Were I restringing a Delignit block I might use a different bitor different sized pin. David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of erwinspiano at aol.com Sent: Sunday, November 29, 2009 7:43 PM To: pianotech at ptg.org Subject: Re: [pianotech] Oversized tuning pins Hi guys How would you all define reaming with "the proper sized bit"? as stated below by Paul and others. Is the goal to jsut ream out the little shoulder at the bottom or the hole or to ream the entire length for the new pin as David L. suggested. Dale ----- Wouldn't you want to chase ("ream") the hole with a proper-sized bit, too? Even if for no other reason than to make the hole the proper depth, i.e. remove the "shelf" at the bottom?? IF that shelf is causing the problem, pulling/replacing the pin isn't going to help, is it?? Paul Bruesch Stillwater, MN On Sun, Nov 29, 2009 at 9:29 PM, <erwinspiano at aol.com> wrote: Rob it's a pain but it works and gets my vote. Dale As I'm still a newbie, I feel somewhat uncomfortable using a zapper. I'm also not keen on attempting to use David Doremus' great idea of loosening the tension, remove the becket, back the pins out with a drill, becket back in, and re-set the pin. I think it's a great idea, but I'm just not at that level yet. Thanks, Rob McCall McCall Piano Service, LLC Murrieta, CA rob at mccallpiano.com www.mccallpiano.com <http://www.mccallpiano.com/> 951-698-1875 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091129/d37aaa4e/attachment-0001.htm>
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