NEODYMIUM DISC MAGNET 3/4 IN X 1/4 IN N42 SINGLE SIDED COUNTERSUNK HOLE
Super Strong Neodymium Magnet N42 3 x 1/2 x 1/8" Permanent Magnet Bar, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
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130 x 8 x 5mm thick N42 Neodymium Magnet - 23.7kg Pull
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R20 x r12.5 x 5mm x 90 N42 Neodymium Arc Magnet - 5kg Pull (Pack of 4) 5055641201786 | eBay