JK SF3
French HornIn Production
Precision Specifications
RIM DIAMETER17 mm
CUP DEPTHMedium
THROAT ∅—
BACKBORE—
SHANKstandard
CUP SHAPEfunnel
Rim Width—
Rim Contour—
Throat Drill #—
Material—
Finish—
Weight—
Recommended For
OrchestralClassical
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Special Features
- Artist Model
Reference Notes
JK SF3 appears in the French Horn catalog section with 17 mm rim, Medium cup, 4.2 mm bore, and standard shank. Database tags list it for Orchestral and Classical use. Noted features include Artist Model. Use these measurements as a comparison starting point: fit and response still depend on the player, dental structure, instrument receiver, and each manufacturer's measuring method.
Brand Deep Dive
JK · BrassFit Science
JK Guide
Exclusive system, USA-Line, K vs M horn logic, P vs PO low-brass families, and shank decoding.