Bach/Schilke listed at the top for comparison.
Please do not take diameter measurements too seriously. Most of the time the difference in columns can be 0.02 of an inch (0.5 mm). Not much really. The measurements are done for comparison purposes of relative sizes. Attributes such as cup depth, rim shape, bite, and backbore also make a big difference in how a mouthpiece plays and feels.
Table 1
31 - 29.5 mm
| Size in mm / Inches | 31.00 mm 1.220" |
30.50 mm 1.201" |
30.00 mm 1.181" |
29.50 mm 1.161" |
| Manufacturer | ||||
| Bach | 25 | 30E | 32E | |
| Alliance | 5P | |||
| Conn | 25 | |||
| Giddings & Webster GW | Churada | |||
| Kelly | 25 | |||
| Josef Klier (JK) | T7 | T8 | T9 | |
| Miraphone | TU05 | TU03 | ||
| Monette | ||||
| Peratucci | PT-24+ | |||
| Bruno Tilz | M4, M15 A1, B1 T1 |
25 | ||
| Denis Wick | 4 | 5 | ||
| Yamaha | 65 | 64 | ||
Table 2
32.75 - 31.25 mm
| Size in mm / Inches | 32.75 mm 1.289" |
32.50 mm 1.280" |
32.25 mm 1.270" |
32.00 mm 1.260" |
31.75 mm 1.250" |
31.50 mm 1.240" |
31.25 mm 1.230" |
| Manufacturer | |||||||
| Bach | 12 | 18 | 22 | 24AW | |||
| Alliance | H1, 4, 4W, Solo | H2 | 3, 3a | ||||
| Conn | Helleberg | 18 | 24AW | ||||
| Curry | 128 | 126 | 124 | ||||
| Doug Elliott | TU129 | TU128 | TU126 | ||||
| Mike Finn | MF1, MF2, MF4 | ||||||
| Giddings & Webster GW | Taku Williwaw Diablo |
Matanuska Bora |
|||||
| Griego | 325D 325XD |
320D 320XD |
315D 315XD |
||||
| JC Custom (Brazil) | 33 Supreme | 32.2 Summit | 32 Ultra 32 Harmonic 32 Supreme |
||||
| Jet Tone | Jet UH | ||||||
| Kelly | 18 | 24AW | |||||
| Josef Klier (JK) | T4 | T5 | T6 | ||||
| Laskey | 28 | ||||||
| LOUD | LM-6 LM-7 |
LM-5 | LM-15 | ||||
| Marcinkiewicz | 18 | ST3, ST4, 24AW | 25 | ||||
| Miraphone | TU25 | TU23 (Old C4) | TU11, TU19, TU21, TU39 (Old C3) | TU09 | TU15 TU17 |
||
| Peratucci | PT-32 PT-34 |
PT-20F PT-30 |
PT-20 | ||||
| Schilke | 69C4 | 67 | 62, SH | 66 | |||
| Signature Models | Roger Bobo Solo (Yamaha) Arnold Jacobs Solo (Kelly) |
Winston Morris (Miraphone) | Arnold Jacobs Std (Kelly) | ||||
| Bruno Tilz | M2, M8, M12, M13, M17, M23, MS25, M29, M30 | M3, M6, M7, M9, M11, M25, M31, A2, B2, T2, C2, 18 | M5, M16, M18, 22 | 24W, 24AW | |||
| Denis Wick | 1 | 2 | 3 | ||||
| Yamaha | 68B | 67, 67C4 | 66D4 | 66, 66B | |||