8 Pieces Black Rectangular Magnets 80 LBS Force | Industrial Pot Magnets Size 2.36"x0.53"x0.20" Epoxy Coating Rust Resistance, Suitable for Outdoor Area, Household

I have a rolling sharpener that I like very much but its angle block is too weak for some of my knives. I got these Neodymium Magnets to place in a piece of wood so I can sharpen filet knives and some stubborn stainless steel knives. This is deceptively easy to use on wood, if it gets near iron... wow! They are super strong and aren't easy to remove from steel (that's a good thing). They have counter sunk mounting holes and come with high quality stainless mounting screws. These are very versatile and are a great value.

I use them in the garage for tool organization and holding things in place during projects. They stick to any steel surface firmly and can handle surprisingly heavy items. No more drilling holes or installing hooks for every little thing. Just slap a magnet on and hang what you need. The rectangular shape is more practical than round magnets for a lot of applications. They sit flat, they line up easily, and they provide a solid surface area for mounting. Stacking them increases holding power if you need even more strength for heavier loads. Build quality is solid. These are not cheap magnets that chip or lose their strength over time. The nickel plating protects them from corrosion and they have maintained full strength since I got them. Neodymium magnets are strong by nature but these feel well made on top of that. Be careful handling them because they will pinch you if you let them snap together unexpectedly. The strength that makes them useful also makes them potentially dangerous if you are not paying attention. Keep them away from electronics and credit cards too. Powerful magnets and those things do not mix. For anyone needing serious holding power for projects, organization, or industrial applications, these magnets deliver. The strength is impressive and the rectangular shape makes them versatile. Worth having a set around for whenever you need something to stay put no matter what.

They're very strong, work great. However use extreme care when mounting them with the screws. If you over tighten them you crack the magnet .

STRONG magnets!! Only issue is when trying to screw them into the wall, you need to be extremely careful not to drill too hard/fast because it will crack the magnet. However, even with a crack in it, it's still strong as... a strong-a** magnet.

These magnets are very strong together, making them difficult to pull apart, which can be frustrating. That being said, the instructions did mention the best way to accomplish this, so points for that, but it still takes patience, strength and leverage. The magnets and accompanying screws came in a nice plastic case and were unbroken. No damage came to the magnets when I was forcing them apart, although I could not remove a magnet from its metal casing. My project: I needed to stack a few strong magnets together to screw to a door stop in the jamb to hold a full-access bifold door closed at the center. I already had a magnet for the end of the door, which was working fine, but the center of the door would not pull shut fully, making the door "bulge" at the center "seam" when closed, and the door was not inset close enough to the door stop in the jamb. By stacking these together, they not only hold well to the metal plate attached to the door, but are at the right distance from the door stop to the door, creating an evenly closed door. Hooray! I described this usage because the tiny M3 screws that came with the magnets were not long enough to hold 4 stacked magnets in place. I had to find and purchase 40-50mm M3 screws to accomplish this and, believe me, they are hard to locate, unless you need carriage bolts, which are not self-tapping. As other reviews have mentioned, it would have been better if longer screws had also been included, since it's possible the tiny screws would not necessarily have enough bite into wood to firmly mount the magnet. I will update this review if anything changes in terms of the magnets' efficacy.

These magnets are junk. When you tighten the screws the magnets crack right across the screw hole. I tried three different magnets and they all do it. DO NOT BUY!

They are so strong it’s hard to get them apart

Strong magnet

Very strong

Produits de très bonne qualités et de finition... Fin par sa faible épaisseur idéal pour un ameublement.. 35 kg par aimant faut vraiment forcer pour une enfant

Apparemment, de qualité très correcte : aimants puissants (TRES difficile de les séparer d'où la confection -quasi obligatoire- d'étuis individuels de rangement, en mousse)... Reçus, en parfait état, dans une petite boite plastique minimaliste -devenue inutile-, avec intercalaires fins en plastique semi-rigide (non suffisants pour les séparer correctement, d'où la confection d'étuis individuels mousse).

Très puissant

Sind wie beschrieben. Sind von der Verarbeitung sehr gut und die Magnete sind echte stark. Für mich ein sehr guter Kauf.