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VGR Venturi Gap Receiver
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Gap Solution Set - Includes everything you need!
.375 - small
.383 - standard
.388 - large
.340 (small bore trumpets)
.345 - Recommended size
.350 - extra large bore trumpets
Save when you purchase our entire Mouthpiece Gap Solution Set. Now you can easily measure and track Gap AND Venturi on up to four different horns AND install and remove shims in seconds!
This Set Includes: - Complete full color illustrated instructions - 10-piece Mouthpiece Gap Shim Kit - Gap Measurement Tool (GMT) to measure gap with any trumpet and mouthpiece - Venturi Measurement Tool (VMT) allowing you to easily identify your Venturi inside diameter in .003" increments from .337" to .352". The VMT also holds a full set of gap shims that unscrew from the base and the small end doubles as a shim kit installation and removal tool.
Includes the following:
- Venturi Measurement Tool (which is also the shim installation/removal tool)
- Gap Measurement Tool (works with multiple trumpets and mouthpieces)
- 10 brass shims, two of each measuring .02, .04, .06, .08, .100
- choice of venturi sizes .340", .345" or .350"
.345" venturi is recommended for most applications
installation and removal instructions complete with graphics and video
links to Jason Harrelson's blog detailing the research, development and science behind closing mouthpiece gap
CLICK HERE for more information on the Mouthpiece Gap Shim Kit
Reducing the Gap between the mouthpiece and leadpipe could dramatically improve the playability of your current setup.
1) Measure your current gap with the INCLUDED Gap Measurement Tool
2) Determine your target gap - usually .060 to .100 inches
3) Medium & Wide Gap: Insert appropriate gap shim inside the receiver with the INCLUDED Venturi Measurement Tool
4) Narrow Gap: Reduce length of mouthpiece shank
5) Read more about reducing Mouthpiece Gap by following the link under "Extended Information".
Mouthpiece Gap Shim Kit - 10 pcs
SET: Gap Shim Kit + Venturi Tool
Mouthpiece Gap Shim Kit - 10 pcs (special sizes)
1 Mouthpiece Gap Shim - Individual
Venturi Measurement Tool
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