Detail 01
.682 inch cup diameter
Medium to large for cornet. More lip in the cup gives a fuller sound but asks more of your endurance.

Independent shopping perspective
Schilke 17 cornet mouthpiece, silver plated. A medium-large diameter with standard cup and rim — a middle-of-the-road choice rather than a specialist piece.

Strong match
Consider the trade-offs
What matters in use
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 01
Medium to large for cornet. More lip in the cup gives a fuller sound but asks more of your endurance.
Detail 02
No specialty shaping in either direction. Balanced response across the range instead of favoring high or low.
Detail 03
Schilke's standard bore. Middling resistance — the horn pushes back enough to center notes without feeling stuffy.
Detail 04
Shorter and differently tapered than a trumpet shank. It seats only in a cornet receiver.
Detail 05
Durable, slightly grippy on the lip. The plating contains nickel, worth knowing if you have a skin reaction to it.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. Cornet shanks are shorter and taper differently. It will not seat properly in a trumpet receiver, and forcing it risks damaging the leadpipe.
It is slightly larger in diameter than both. The 15 and 16 blow a bit freer with a smaller feel; the 17 sits in the middle of the medium-large range.
It uses a standard C cup, not a deep funnel. For a bigger rounder cornet sound, the 11E style large funnel cup goes further in that direction.
Larger than most stock student pieces. Expect a fuller sound with more resistance to endurance until your chops adapt.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.