Normal fractional drill bits often are sized every 1/32". Bore sizes
correspond to numbered drill bits, and the difference between numbers
is usually only a couple of thousandths. A number 3 bore is 0.213", and
number 12 bore is 0.196". There are ten number drills covering a range
that, at best, includes only two fractional drills.
If you go to Harborfreight.com, you can buy a complete set of numbered
drill bits, on sale, for $12.99. The bits are M-2 steel and are TiN
coated. Only change the bore one number size at a time. At the very
least, use a drill press. If possible, set it up so the mouthpiece
spins, and the drill bit is clamped and stationary. Remember, you can
easily drill it bigger, but you can't drill it smaller.
-----Original Message-----
From: [EMAIL PROTECTED]
To: horn@music.memphis.edu
Sent: Thu, 22 Mar 2007 8:54 AM
Subject: Re: [Hornlist] Yamaha mouthpieces
I've had a couple horn professors tell me to drill a mouthpiece to a
larger
bore myself. I even did it to a $100 mouthpiece on a suggestion by a
well
respected horn professor ( you all know him ). Just fit the drill bits
through
the bore until you find the one with the tightest fit. Then go one
bigger and
drill away. Don't worry about centering too much it kind of self
centers as
long as you make an effort to drill straight. Since the yamaha
mouthpiece is
cheap and easy to come buy, it might be worth a shot.
-James
----- Original Message ----
From: Steve Freides <[EMAIL PROTECTED]>
To: The Horn List <horn@music.memphis.edu>
Sent: Thursday, March 22, 2007 8:44:16 AM
Subject: [Hornlist] Yamaha mouthpieces
My son has been playing a Yamaha 30C4 mouthpiece for years. To me, it
feels
like a pea-shooter, very narrow. In the interest of changing just one
variable, I'd like to stick with Yamaha and find the next larger bore
mouthpiece and hope it otherwise feels the same at the rim, etc. If
someone
could tell me which model that is, or point me to a web site that
shows this
sort of information, that would be most helpful. The idea here is to
make a
small change, not a big one.
Thanks in advance.
-S-
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