Theo Wanne Digital Tip Opening Gauge

Find the tip opening size on any woodwind mouthpiece.  Every shop, and anyone with multiple mouthpieces, needs this tool!

Mouthpieces are notorious for not measuring as they are marked, and this tool will help you find your mouthpiece’s actual opening.  This is an indispensable tool for musicians with multiple mouthpieces and for retail stores selling mouthpieces. It allows you to compare various models for tip size.

A bigger tip opening takes more air to fill the horn; a small tip opening takes less. 

Our gauge body is made from gold anodized solid billet aluminum. Included is the digital gauge and our accurate tip which allows for great visibility of the tip rail.  Millimeter measurements on the side of the gauge measure distance from the tip rail for plotting baffle and rail measurements too.

Instructions for measuring mouthpiece tip size:

1. Turn the unit on by pressing the OFF/ON button.
2. Put the gauge on flat surface, and hit the ZERO button. This calibrates the gauge.
3. Place the gauge on a mouthpiece. The Accurate-Tip (ball like end on the plunger) should be in the center of the tip rail. This will give the tip opening measurement. Switch between inches and millimeters by pushing the INCH/MM button.

To do mouthpiece refacing, you can also get our Glass Gauges, Feeler Gauge Set,  Thick Glass Plate, and our Sandpaper, File and Sanding Stick Set.