“Countersunk pot magnet”

NdFeB Powerful Magnet with Countersunk Hole

NdFeB countersunk hole magnets are rare earth permanent magnets with countersunk holes. Countersunk holes, many people are unfamiliar with this, in fact, you can understand the screw holes, the main purpose of the countersunk holes is to be used with the screws, to play a fixed about, and the siz...