MINI NEODYMIUM BLOCK MAGNET

I bought around 50 of these in 2 orders. About half of them are extremely weak and inconsistent. The others are exactly as advertised.

I was looking for magnets to use in making DIY CD-ROM motors for flying RC airplanes, but these aren’t quite up to snuff. They’re good to play with or maybe to hold a hatch on a small airplane. A few of the ones I bought were very weak compared to the others, by about by half. These may be N38 magnets…maybe! I found a place I can get N50’s for about the same price. FYI you need N45 or better for a good brushless motor. Don’t give these to children to play with, I’ve read that Neodymium magnets are composed of a poisonous material, that is why they are plated. So it is recommended that you dispose of them if broken.

These quite strong, and very small. I like them. I believe these would typically be used for something like timing or positioning of rotary devices with hall-effect switches, as in automotive cam shafts, that sort of thing. I got a few dollars worth because they're fun to play with. Stick 'em on your ear lobes to make instant geeky earrings without the need to get pierced. How low-tech is THAT?