Review of Magcraft NSN0911 1/2-Inch by 1/2-Inch by 1/8-Inch Rare Earth Block Magnets, 10-Count

All of these Magcraft magnets deserve a 5 star rating for their strength and variations in design. Apart from that, be forewarned! These magnets are so strong they may cause some mischief. They are definitely not safe for small children. For example, I put one on the refrigerator but it was too strong to pull off. I had to slide the magnet over to the edge of the door to peel it off. But the magnet snapped around the corner and pinched my finger creating a blood blister. Also, contrary to the episode of Myth Busters, these magnets are in fact strong enough to de-magnetize the magnetic strip on your ATM card. I know this for certain because I unwittingly carried one of the larger magnets around in the same pocket where I keep my wallet. The next time I went to the store my ATM card would not work. So I tried my Visa card. It wouldn't work either. So these magnets are great, but use with caution!

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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 block magnets are 0.500 inch (12.7mm) long, 0.500 inch (12.7mm) wide and 0.125 inch (3.2mm) 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 6 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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Review of Magcraft NSN0683 3/4-Inch by 1/16-Inch Rare Earth Disc Magnets, 10-Count

I have a metal-framed desk to which I attach these magnets. Tools and small metal candy tins then hang within easy reach of my work area, and organize my various accessories such as screws, circuits, solder, and other stuff. Magnets also hold my metal utensils against my oven while I cook! This size is wide and flat and will be difficult to remove from against a wide surface unless you can slide it to an edge. As with all neodymium magnets, they can pinch your skin, and will scratch or crack if mishandled. Do not let children swallow 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 0.75 inch (19.1mm) diameter and 0.063 inch (1.6mm) 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 4 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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Review of Magcraft NSN0620 1/4-Inch Rare Earth Sphere Magnets, 10-Count

Neodymium-Iron-Boron rare earth magnet: 1/4 sphere... The north and south poles are through an axis of the sphere, as you would expect. Strong enough to hold together *through* your hand. They'll jump 4-5 inches. Don't throw them, they seem to be chrystaline or cast metal, but chromed.

Click Here to see more reviews about: Magcraft NSN0620 1/4-Inch Rare Earth Sphere Magnets, 10-Count

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 sphere magnets are 0.250 inch (6.4mm) in diameter. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Max Working Temperature - 176 F (80 C). Magnets may chip and crack if allowed to snap together

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