Countersunk (Countersink) Ndfeb Pot Magnet 

Countersunk  (Countersink)  Ndfeb Pot Magnet Pot or Cap Magnets substantially increase the holding ability of disc and ring magnets that are fixed permanently and located in the centre of the steel pot or cap. The lower side of the magnet is in direct contact with bottom of the pot and the top side of the magnet is fractionally lower than the top edges of the pot. The outside diameter of the magnet less than the inside diameter of the pot, leaving a 2-4 mm spacing around the magnet which is generally filled with resin.  A very strong locking field exists around the perimeter of the pot between the top of the magnet and the pot top edge returning the reverse side field. More Ndfeb Pot Magnet Details: