M - Medium Wide Cup #27 throat 41/64” diameter
M1, M2, M3D, M3, M4 ( 1= Deepest cup 4= Shallowest cup)
W - Wide Cup #27 throat 42/64” diameter
W1, 2, W3D, W3 ( 1= Deepest cup 3= Shallowest cup) #27 throat 42/64” diameter
WS - Very Deep Cup #27 throat 42/64” diameter
WS C same as WS with #25 throat
W1-S, W2-S, W3-S
Sharper bite than the W series with greater cup volume
WX - Very Wide Cup A, B, C Bowl shaped cup #27 throat 43/64” diameter
WX 1, 2, 3D, 3 ( 1= Deepest cup 3= Shallowest cup) #27 throat 43/64” diameter
WXS Very Deep Cup #27 throat 43/64” diameter
WXS C same as WXS with #25 throat
WXT - B2, B3, B4, B5, ( B2 deepest - B5 shallowest ) #28 throat
WXT C Deeper than WXT B2 with #25 throat
WF and WXF Flugelhorn mouthpieces with #19 throat
Bach, Yamaha, and Couesnon shank available.
For information or to order contact Michael Thomas at