Thickness: 1

The more space there is between the magnet and the magnetic surface

closely resembling plum

the tool also remains clean and free of metal shavings

Forsænket pottemagnet, Ø20 mm. - Neodymium engros Thickness: 1Pot magnet 20 mm. with counterbore hole for screws with a normal round screw head (you cannot use countersunk screws with this magnet type). The difference between a counterbore and a countersunk pot magnet is that the screw goes further into the hole on a counterbore pot magnet, as there is room for a larger screw head. It is important for the strength of a magnet that the surface is completely flat, and with a counterbore magnet with a large hole