How do you measure MP throat size?

Steve Davis · 11-07-2009, 11:21 AM

I need to know the size of the throat on a custom mouthpiece that I recently purchased. What tool do you use to measure it and what kind of store could I go to obtain one? There are no trumpet repair shops close to me. Can anyone help?

Thanks,
Steve

Brekelefuw · 11-07-2009, 12:49 PM

Contact the manufacturer. That is the easiest way to find out.

dizforprez · 11-07-2009, 12:52 PM

Aren't they just metric drill bit sizes?

Steve Davis · 11-07-2009, 01:18 PM

So I could go to like Lowes or Home Depot and buy metric drill bits in several sizes near what I think it is and that would tell me what I need to know?

Steve

ewetho · 11-07-2009, 05:11 PM

You need a drill index of numbers drills. A 20 is bigger than 27. They are wire sizes I think.

20 is .0161" which is close to 4.1mm.

VetPsychWars · 11-07-2009, 05:11 PM

They're number-series, not metric.

If you were serious about this, you would buy one each from 28 through 20.

Tom

Steve Davis · 11-07-2009, 05:44 PM

Thanks for the help everyone. I think I understand now. For example a #20 drill bit is 0.161" in diameter whereas a #25 drill bit is 0.149" in diameter. Thus the smaller the throat size (=drill bit size#) the bigger the throat.

Steve

ewetho · 11-08-2009, 01:00 AM

You can see a lot of common sizes on this in both wire size and metric with conversions to inches.

Machinist Drill Sizes - ANSI Size Drills, ISO Metric Drill Sizes - Engineers Edge

DrDave · 11-08-2009, 11:31 AM

You could also purchase a pin gauge set, which would allow you to fine tune your measurements.

M1 Minus Plug Pin Gage Gauge Set 0.061-0.250" - eBay (item 250524004893 end time Nov-09-09 08:36:46 PST)

Cheers,
Dave

11-07-2009, 11:21 AM	#1
Steve Davis New Friend Join Date: Dec 2007 Posts: 8	How do you measure MP throat size? I need to know the size of the throat on a custom mouthpiece that I recently purchased. What tool do you use to measure it and what kind of store could I go to obtain one? There are no trumpet repair shops close to me. Can anyone help? Thanks, Steve Last edited by Steve Davis; 11-07-2009 at 12:03 PM.

11-07-2009, 12:52 PM	#3
dizforprez Forte User Join Date: Nov 2003 Posts: 1,076	Re: How do you measure MP throat size? Aren't they just metric drill bit sizes?

11-07-2009, 01:18 PM	#4
Steve Davis New Friend Join Date: Dec 2007 Posts: 8	Re: How do you measure MP throat size? So I could go to like Lowes or Home Depot and buy metric drill bits in several sizes near what I think it is and that would tell me what I need to know? Steve

11-07-2009, 05:11 PM	#5
ewetho Piano User Join Date: Jun 2007 Location: Kankakee, IL Posts: 257	Re: How do you measure MP throat size? You need a drill index of numbers drills. A 20 is bigger than 27. They are wire sizes I think. 20 is .0161" which is close to 4.1mm. __________________ Kanstul Chicago 1001 w/ CG Personal GP Conn 80A w/ CG Personal GP

11-07-2009, 05:11 PM	#6
VetPsychWars Piano User Join Date: Nov 2006 Location: Greenfield WI Posts: 263	Re: How do you measure MP throat size? They're number-series, not metric. If you were serious about this, you would buy one each from 28 through 20. Tom __________________ 1949 Buescher 400 Trumpet 1939, 1946 Buescher Aristocrat Trumpets 1955 Buescher 400 Cornet Meeuwsen custom 5C-ish mouthpiece Milwaukee Metropolitan Community Concert Band

11-07-2009, 12:49 PM	#2
Brekelefuw Forte User Join Date: Mar 2006 Location: Toronto Posts: 1,532	Re: How do you measure MP throat size? Contact the manufacturer. That is the easiest way to find out. __________________ Schilke B3L Schilke XA1 Bach 37 180 ML Chinese custom horn Yamaha 6310G Wedge 5B, 5A and 5FLG After silence, that which comes nearest to expressing the inexpressible is music. ~Aldous Huxley

11-07-2009, 05:44 PM	#7
Steve Davis New Friend Join Date: Dec 2007 Posts: 8	Re: How do you measure MP throat size? Thanks for the help everyone. I think I understand now. For example a #20 drill bit is 0.161" in diameter whereas a #25 drill bit is 0.149" in diameter. Thus the smaller the throat size (=drill bit size#) the bigger the throat. Steve

11-08-2009, 01:00 AM	#8
ewetho Piano User Join Date: Jun 2007 Location: Kankakee, IL Posts: 257	Re: How do you measure MP throat size? You can see a lot of common sizes on this in both wire size and metric with conversions to inches. Machinist Drill Sizes - ANSI Size Drills, ISO Metric Drill Sizes - Engineers Edge __________________ Kanstul Chicago 1001 w/ CG Personal GP Conn 80A w/ CG Personal GP

11-08-2009, 11:31 AM	#9
DrDave Pianissimo User Join Date: Nov 2004 Location: Vancouver, BC Posts: 120	Re: How do you measure MP throat size? You could also purchase a pin gauge set, which would allow you to fine tune your measurements. M1 Minus Plug Pin Gage Gauge Set 0.061-0.250" - eBay (item 250524004893 end time Nov-09-09 08:36:46 PST) Cheers, Dave __________________ Dave Harrison (Dr. Dave) www.wedgemouthpiece.com Blackburn Bb, C, Eb/D, Bb/C Pic, Bb/A Pic, Bb cornet Harreslons - 907L, 909 Bach 37, 908 Benge 90C Yamaha 635ST Flugel Wedge 5C, Wedge ML backbore A VERY understanding wife and more toys than talent

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