Cornet Mouthpiece Underpart Only by Bob Reeves Brass

Handcrafted, screw-rim cornet mouthpiece underpart only by Bob Reeves Brass. Choose rim diameter and cup shape. This is for the underpart only. You need to have a Reeves rim already to properly use the mouthpiece. If you need a complete mouthpiece, please order it here. Rim Sizes (smallest diameter to largest): 40 - 40/64", .625", 15.875mm, 10-1/2C Mt. Vernon 41 - 41/64", .641", 16.28mm, 7C Mt. Vernon 42 - 42/64", .656, 16.66mm, 3C Elkhart 43 - 43/64", .672", 17.09mm, 3C, Shew Jazz 43N - 43/64", .672", 17.09mm, 2-1/2C 43W - 43/64", .672", 17.09mm, 3CW 43.5 - 43.5/64", .680", 17.27mm, 1-1/2C, 5C Cup Shapes (shallowest to deepest): ES - Extra shallow bowl SV - Shallow "V"  S - Shallow bowl M - Medium bowl D - Medium-deep "V" C - Medium-deep bowl B - Deep bowl