You are probably talking about a pin vise, which is available from machinists supplies (and probably from Amazon.com). I've used an even simpler approach: wrap several turns of adhesive tape around the shaft of an appropriately sized drill. That's even skinnier than a pin vise and gives you enough grip to enlarge a bridge hole. Worked for me when I converted the basses on my Lundberg 8-course from wound strings to gimped gut.
Guy -----Original Message----- From: lute-...@cs.dartmouth.edu [mailto:lute-...@cs.dartmouth.edu] On Behalf Of Edward Mast Sent: Thursday, February 17, 2011 1:14 PM To: Sauvage Valéry Cc: 'Daniel Winheld'; lute@cs.dartmouth.edu Subject: [LUTE] Re: New nylgut and KF basses On instruments with bridge and peg holes too small for heavier gauge strings, Val, I've found it an easy procedure to enlarge them with a small "hobby" drill. A very small drill that can be turned with the fingers, and accepts various size drills. On Feb 17, 2011, at 2:02 PM, Sauvage Valéry wrote: > > > -----Message d'origine----- > > Could you tell us your string length, string diameters & tension, pitch > standard? > > Thank you, Dan > > > Here are the infos : > Strings : NNG (new nylgut Aquila) KF (Savarez KF) Lute string length 60 cm, > A 440 > > The references of the KF are from luthier Carlos Gonzales (Spain) and for > the NNG, calcul made by luthier Wolfgang Früh, in Paris. > > > 1: NNG 38 (too thin I think I'll try 40 next time) tension = 3.33kg > > 2: NNG 48 t = 2.98 kg > > 3: NNG 64 t = 2.97 kg > > 4: NNG 79 t = 2.85 > > 5 : KF 84, NNG 52 t = 2.43 , 2.77 (I'll try to change the 84 KF by the NNG > next time) > > 6: KF 116, NNG 70 t = 2.60, 2.82 > > 7: KF 127, NNG 79 t = 2.47, 2.85 > > 8: Kurchner copper KN 5185, NNG 94 t = 2.76, 2.86 > (will try to change the KN by a Savarez KF, but I'm afraid it will be too > big fot the bridge and peg holes ???) > > > > > To get on or off this list see list information at > http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
