tolerance: +/-0.05mm (0.002 inch) . Super strong Rare-Earth magnets - once they get stuck with each other, they are hard to break apart. Neodymium magnets are brittle; they can be broken or can splinter in a collision. Electrically conductive (making them suitable to exte. Normal Neodymium magnets will lose their magnetic properties if heated above 175°F (80° C). Pull force:350lbs . Size: Dia 50x30mm ; Great for do-it-yourself projects. Quantity: 1 magnet per package You should avoid having constant contact with magnets of any size and keep a distance of at least 3 feet to large magnets.Under no circumstances should you try to cut, saw or drill the Neodymium magnets! Not only would the magnet break, but the resulting dust from the magnet is very flammable. Neodymium magnets should never be burned, as burning them will create toxic fumes. Why is this magnet more expensive than other size same($39)?
a> This is Real N52
b> The tolerance is +/-0.05mm
c> Pulling force is 350Lbs

Importance Attention:

When you try to make the magnets apart, please slide and push the magnets one by one to avoid breaking them. Strong magnets, please take care! Neodymium magnets are brittle; they can be broken or can splinter in a collision. One should wear gloves and protective glasses when handling these magnets, because splinters could disengage and fly from the magnets. Super strong Rare-Earth magnets,once they get stuck with each other,they are hard to break apart. Care should be used when handling two magnets as they can pull together with such force that pieces of the magnets can splinter off and cause injury. Keep the magnets away from pacemakers and magnetic storage devices such as mobile phones, bank cards and computers. When connecting two magnetic buttons, draw them close to each other slowly and gently. Hard crushing would cause damage and cracks in the magnetic material.


The strong magnetic fields of neodymium magnets can damage items such as television, computer monitors, credit cards, bank cards, computers, diskettes and other data carriers, video tapes, mechanical watches, hearing aids, loud speakers and VCRs. Pace-makers may be damaged or switch to "Test Mode" in the presence of a strong magnetic force, if a pace-maker is in use, keep a minimum of 3 feet distance.


Children and pets should not be allowed to handle neodymium magnets as they can be dangerous. Small magnets pose a choking hazard and should never be swallowed or inserted into any part of the body.

Included in the Package: 1 x Rare Earth Industrial Cylinder Magnets Disc.