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Neodymium Disc Hole Magnet, 1.425 in x 0.3 in Strong Earth Round Industrial Magnets with 0.15 in Countersunk Hole, 12 lbs Powerful Pull Force, 10 Pack: Amazon.com: Industrial & Scientific
![Pull force / magnetic force Calculation between a block magnet (NdFeB block magnet, SmCo block magnet, Alnico block magnet and ferrite block magnet) and an iron plate Pull force / magnetic force Calculation between a block magnet (NdFeB block magnet, SmCo block magnet, Alnico block magnet and ferrite block magnet) and an iron plate](http://www.cy-magnetics.com/Blockplatte.png)
Pull force / magnetic force Calculation between a block magnet (NdFeB block magnet, SmCo block magnet, Alnico block magnet and ferrite block magnet) and an iron plate
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Strong Hand Tools - Str-7089 , Heavy Duty, Adjust-O Magnet Square, On/Off Switches, Pull Force: 160 lbs, 6" x 5-1/8" x 1-3/8", MSA48-HD: Magnetic Sweepers: Amazon.com: Tools & Home Improvement
![Pull force / magnetic force calculation between two disc magnets (Neodymium disc magnet, Samarium disc magnet, Alnico disc magnet, ferrite disc magnet) Pull force / magnetic force calculation between two disc magnets (Neodymium disc magnet, Samarium disc magnet, Alnico disc magnet, ferrite disc magnet)](http://www.cy-magnetics.com/two-disk-Attraction.png)