1G
Cup Diameter: 29mm, 1.144" Bore: 'O', .316"
Cup Depth: "G" Deep, "GS" Slightly Shallower Rim Width: Medium Thin
Alternate Bore Available: .312"/#2
1 3/8G
Cup Diameter: 27.90mm, 1.098" Bore: 'N', .302"
Cup Depth: Deep Rim Width: Medium