----- Original Message ----- From: "Ron Overs" <sec@overspianos.com.au> To: <pianotech@ptg.org> Sent: Sunday, September 03, 2000 2:59 AM Subject: Re: Next size larger bridge pins > Snip< ....... we consider it important to redrill the bridge pin holes to > establish a uniform diameter from top to bottom prior to repinning. A 0.1 > mm step drill set is required for this work. > > Regards, > > Ron Overs > > Overs Pianos, Sydney Australia > ------------------------------- > Email: sec@overspianos.com.au > Website: www.overspianos.com.au > ------------------------------- > Please forgive what is likely a VERY basic question, but what is a 0.1mm step drill set? Is this simply drill sizes that progress from bit to bit in 0.1mm increments? And what guidelines do you use in selecting a drill bit diameter for a given pin diameter (I presume the drill bit selected would be some measure smaller than the bridge pin). Thanks! Terry Farrell Piano Tuning & Service Tampa, Florida mfarrel2@tampabay.rr.com
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