Detail 01
.953-inch (24.38 mm) cup diameter
Sits in the student range, a touch smaller than the 46. Less lip inside the rim, so upper notes take less effort to hold.
Product detailSKU #1275776904731
SchilkeStandard Series Small Shank Trombone Mouthpiece 45 Silver
Independent shopping perspective
The Korena take
Small-shank trombone mouthpiece, .953-inch cup with a flexible semi-flat rim. Schilke's beginner size, for first-year through early-intermediate players on small-bore tenor horns.
Strong match
Who this is for
- First and second year students on small-bore tenor trombones
- Band players who need clean slurs and register changes
- Replacing a lost or dented student mouthpiece with a known size
Consider the trade-offs
When to look elsewhere
- Large-bore tenor and bass trombones — the small shank won't seat
- Orchestral players after a big sound; the 51 and 53 go larger
- Lead and commercial work — the 42B and 43A favor the high register
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Semi-flat rim, high point near the center
Spreads pressure and keeps the contact point centered, which is why slurs and register jumps stay under control.
Detail 03
15/64 throat
The common Schilke tenor throat. Steady resistance — enough back-pressure that a developing player can control the airstream.
Detail 04
Small shank
Seats in small-bore tenor trombone receivers only. It will not fit a large-bore tenor or a bass trombone.
Detail 05
45 next to the 45B
Same diameter, but the 45B uses a contour rim and more cup volume and is aimed at lead players, not students.
Detail 06
Silver finish
Smooth on the lip and easy to wipe clean. It dulls with time, so wipe it down after playing.
Final check
Know before you order
- 01Mouthpiece only — no pouch, brush or case included
- 02Confirm your horn takes a small shank before ordering; large-bore receivers won't accept it
- 03Players usually outgrow this size; the 47 is the common next step
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is the Schilke 45 good for a beginner?
Yes. It's the size Schilke points beginners toward. The semi-flat rim and moderate .953-inch cup make it manageable while a student's embouchure is still forming.
02What's the difference between the 45 and the 46?
The 46 is slightly larger at .966 inch and is also a beginner size. Same 15/64 throat. Pick the 46 if the 45 rim feels cramped.
03Will this fit a bass trombone?
No. This is a small-shank mouthpiece and bass trombones use a large shank. It also has far too small a cup for bass work.
04What should I move to after the 45?
The 47 is the usual step up — larger cup with good response, tone and intonation, and it works for students and professionals. The 50 suits medium and medium-large bores.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
23 detailsOther
- 40
- 22.53 mm, .887” cup diameter; 15/64 throat. Since the cup diameter is small, the upper register is improved. In addition, the tone has considerable projection. It is excellent for the bass trumpet and valve trombone.
- 42
- 23.22 mm, .914” cup diameter; 15/64 throat. Slightly larger diameter and deeper than the 42B, the 42 features a standard C cup.
- 45
- 24.38 mm, .953” cup diameter; 15/64 throat. The semi-flat rim has a high point close to the center of the mouthpiece which allows for a great deal of flexibility. Ideally suited for the beginner trombone player.
- 46
- 24.54 mm, .966” cup diameter; 15/64 throat. Slightly larger than the 45, this is also a good beginner’s mouthpiece.
- 47
- 24.99 mm, .984” cup diameter; 15/64 throat. For both professionals and students alike, this outstanding mouthpiece combines good response with superior tone quality and intonation.
- 50
- 25.40mm, 1.00” cup diameter; 17/64 throat. Particularly adapted to the medium and medium-large bore tenor trombones. The Schilke standard options make this a fine all- around mouthpiece.
- 51
- 25.63 mm, 1.010” cup diameter; J throat. A large bowl-shaped cup producing a rich tone quality. Ideally suited for large bore tenor and orchestral performers.
- 52
- 25.78 mm, 1.015” cup diameter; 17/64 throat. Slightly larger diameter than the model 51, this mouthpiece produces a slightly broader sound.
- 53
- 26.24 mm, 1.033” cup diameter; 15/64 throat. This combination of large cup diameter and bowl shape is widely favored by those who desire a rich, full sound.
- 45b
- 24.30mm, .953” cup diameter; 15/64 throat. Contour profile—designed for the lead trombone player with a larger cup volume than the 43A.
- 46d
- 24.76 mm, .975” cup diameter; 15/64 throat. The cup diameter and volume is slightly larger than the 46, producing a full, resonant tone. Also recommended for the younger baritone/euphonium player.
- 43a
- 23.57 mm, .924” cup diameter; 15/64 throat. Contour profile—this mouthpiece was designed for the lead trombone player desiring an easy high register.
- 42b
- 22.99 mm, .921” cup diameter; 15/64 throat. Contour profile—this mouthpiece is well suited for the small tenor trombone and lead or commercial playing.
- 51b
- 25.63 mm, 1.010” cup diameter; F throat. This mouthpiece incorporates a large diameter with a medium-small B cup and small throat.
- 40b
- 22.51 mm, .886” cup diameter; 15/64 throat. Extremely small inner rim diameter and shallow B cup. This mouthpiece, with its wide-rounded rim, works well for the trumpet player who doubles on trombone.
- 52d
- 25.78 mm, 1.015” cup diameter; ¼ throat. Like the 51D, the large D cup makes this mouthpiece ideal for symphonic trombone playing. Also a good choice for the Euphonium player requiring a larger diameter than the 51D.
- 51d
- 25.55 mm, 1.005” cup diameter; J throat. One of our most popular, this mouthpiece offers a very large D cup and is excellent for the strong player. It is particularly suited for the Euphonium, producing a full dark tone.
- 47c4
- 25.10mm, .988” cup diameter; 15/64 throat. Like the model 47 but with a slightly wider, semi-flat number 4 rim.
- 52e2
- 25.91 mm, 1.020” cup diameter; J throat. With its extremely deep E cup and narrower, rounder number 2 rim makes this mouthpiece an ideal symphonic choice for the robust player. Also a good choice for Euphonium player requiring more cup volume than the 52D.
- 50c4
- 25.40mm, 1.00” cup diameter; F throat. The medium-deep cup and medium-wide rim make this mouthpiece an outstanding choice for medium and large-bore tenor trombones, combining a rich, full sound with a high level of efficiency and playability.
- 51c4
- 25.63 mm, 1.010” cup diameter; J throat. Similar to the model 51 with a slightly shallower cup and semi-flat number 4 rim.
- 44e4
- 24.28 mm, .956” cup diameter; 15/64 throat. Though a small cup diameter, this mouthpiece offers a very deep E cup and semi-flat number 4 rim.
- 47b
- 24.87 mm, .979” cup diameter; C throat. Contour profile—This mouthpiece is a good all-around mouthpiece for the jazz player that is requiring quick response and a resonant high register.
