JK (Josef Klier)
2CM
One PieceM-Series
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026
Specifications
Cup Diameter
17.50mm
16.50mm18.50mm
Cup Depth
Medium Deep
Cup Shape
bowl
Bore Size
4.40mm
3.80mm4.80mm
Rim Shape
Flat
Other Brand Similar Specs
Spec proximity does not guarantee actual feel or tone. Trying before purchase is recommended.
Yamaha HR-32-GPMedium Similarity
Cup Diameter: -0.02mmBore: SameCup shape differs
Specs used: 5 / missing: 0
Engelbert Schmid 8.5Medium Similarity
Cup Diameter: SameBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) E.Schmid 85Medium Similarity
Cup Diameter: SameBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) McWilliam 1Medium Similarity
Cup Diameter: SameBore: SameCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 8LMedium Similarity
Cup Diameter: SameBore: -0.20mmCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 21Low Similarity
Cup Diameter: SameBore: -0.40mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 23Low Similarity
Cup Diameter: SameBore: -0.40mmCup Depth: medium deep → deepCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 8FMLow Similarity
Cup Diameter: SameBore: -0.40mmCup Depth: medium deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Alexander MY15Low Similarity
Cup Diameter: SameBore: +0.10mmCup Depth: medium deep → very deepCup shape data unavailable
Specs used: 4 / missing: 1
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.