JK (Josef Klier)
3BK
One PieceK-Series
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026
Specifications
Cup Diameter
17.00mm
16.50mm18.50mm
Cup Depth
Deep
Cup Shape
funnel
Bore Size
4.60mm
3.80mm4.80mm
Rim Shape
Round
Other Brand Similar Specs
Spec proximity does not guarantee actual feel or tone. Trying before purchase is recommended.
Alexander MY13Medium Similarity
Cup Diameter: SameBore: +0.20mmCup shape data unavailable
Specs used: 4 / missing: 1
Engelbert Schmid 6Medium Similarity
Cup Diameter: SameBore: -0.20mmCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) E.Schmid 6Medium Similarity
Cup Diameter: SameBore: -0.20mmCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 6Medium Similarity
Cup Diameter: SameBore: -0.90mmCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 9FMedium Similarity
Cup Diameter: SameBore: -0.90mmCup shape data unavailable
Specs used: 4 / missing: 1
Engelbert Schmid 5.5Low Similarity
Cup Diameter: SameBore: -0.40mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) E.Schmid 55Low Similarity
Cup Diameter: SameBore: -0.40mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Holton (Farkas) DCLow Similarity
Cup Diameter: +0.07mmBore: +0.23mmCup shape data unavailable
Specs used: 4 / missing: 1
Yamaha HR-30D4Low Similarity
Cup Diameter: +0.08mmBore: -0.10mmCup shape differs
Specs used: 5 / missing: 0
Other Models by JK (Josef Klier)
Where to Find
This site does not sell mouthpieces. Links are provided for reference only. Please verify prices and availability directly with retailers.