Review on 💪 Highly Efficient Neodymium Magnets: Rare Earth Magnet Material Handling Solutions by Vincent Blitz

These work fine but the countersunk hole is too small if you use larger screws than the tiny screws that come with these magnets. I recommend round bowl magnets instead. holes and they seem much stronger. be careful when screwing in, otherwise you'll crack them badly. I didn't crack them. even then I cracked a few. They stay in the cup very well as long as you don't crack them hard. I just put some super glue on them when I do that. Magnet and adhesive find their way to where they are supposed to go. Also, the magnet should face outwards when you hang tools on it. You lose a significant amount of holding power if you use the back of the cup to hold something. Mention that the holes are recessed on the side facing the Magnet T-cup