Review of Magcraft NSN0582 3/4-Inch by 1/4-Inch Rare Earth Disc Magnets, 4-Count

Really ... it's actually difficult to imagine how strong these small magnets are. I am totally amazed.
Nicely finished product too.

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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 0.75 inch (19.1mm) diameter and 0.25 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 16 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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