Custom BT#1 Trombone Mouthpiece
Inner diameter: 1.123″ or 28.524mm
Bore Size: Standard – .316″ or 8.027mm, Symphonic – .323″ or 8.204mm
Cup Depth: 1.533″ or 38.938mm
This is a very large mouthpiece in every way.The BT#1 is only available on the heavy blank style. The extra mass really helps to lock down the core of the sound and helps to slot the pitch.
- Weight: 0.14 oz