Materials:
Brass (surface stained, nickel-plated or chrome-plated) Stainless Steel 1.4551, 1.4571
Bond (Worm brass, Tube stainless steel)

Worm - dimensions:
R 1/2“, R 3/8“, R 3/4“ (GERMAN INSTITUTE FOR STANDARDIZATION 2999, GERMAN INSTITUTE FOR STANDARDIZATION 228)
other worms, metric worm on inquiry

Tube - dimensions:
Brass:
Inner diameter: 6.5; 6.7; 7.0; 7.5; 8.1; 8.5; 14.5; 15.0; 19.0 mm
Wall Thickness: 0.75 mm
Stainless Steel:
Inner diameter: 6.5 mm
Wall Thickness: 0.5 mm