Magnets shallow pot hard ferrite
Housing, steel.
Magnetic core hard ferrite.
Version:
Housing, galvanized.
Note:
Shallow pot magnets without threaded bush. These magnets are pressed or glued into the receiving holes.
Hairline cracks in the magnetic material are unavoidable for technical reasons in the D=80 version. They do not impair the attracting function of the magnets in any way.