Review of Magcraft NSN0641 1/2-Inch by 1/4-Inch Rare Earth Disc Magnets, 8-Count

I bought these cylidrical, 1/2" x 1/4" neodymium magnets hoping to use them as very strong refrigerator magnets, since their basic shape is not 'flat' but they have some vertical height to them.(I've tried "Magnutz" designed for fridges, but they're a bit weaker than I'd like; those contain much smaller neodymium magnets.)

I found these magnets quite strong, well-made.I don't anticipate their chipping with use, for example; I suspect they've got a stainless steel covering, although the magcraft website doesn't specify.As a fridge magnet, these are a tad TOO strong if you use them as is; they're rather difficult to get off the metal surface.E.g. if a bunch of them stick together in a stack, I can't pull them apart directly, but have to laterally slide one off the other.(Note, the description of approx. 10 lbs pulling weight each magnet seems approximately correct.Gotta get a good grip to get one of these off the fridge; I can do it, my wife can't quite.)

To make perfect extra-strong refrigerator or workplace magnets out of these, all you need to do is find some sort of container for them that you can use to "grab" the magnet.E.g. glue one of these magnets to the bottom of the tiny scoops that come with baby formula powder... or, I found it easy to sew a magnet inside a piece of 2" square cloth, making a tiny sack that works perfectly as an extremely -- extremely! strong refrigerator magnet, easy to grab & use.(Hey, someone could do some business making these...)

Whether or not the magnets fit my particular purpose: you should know that these magnets are quite strong, certainly well made, beautiful little items, seem to be designed to take a good beating.

They are certainly too strong to give a kid to play with; very little creative capacity, it seems, when they're this strong.And, they are strong enough to magnetize small iron objects, so watch out how you use them.

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Product Description:
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These disc magnets are 0.500 inch (12.7mm) diameter and 0.250 inch (6.4mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 10 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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