Do not present any risk of breakage.
These steel diaphragm tokens are easily insertable into your traditional component holders with a diameter of 40 mm.
Circular openings:
Ø2 mm (ref. 204 071)
Ø5 mm (ref. 204 072)
Ø10 mm (ref. 204 073)
Ø20 mm (ref. 204 074)
Diameter: 40 mm
Material: thick 2 mm steel
Treatment: matte black lacquer