FIRST4MAGNETSN42 Neodymium Countersunk Magnet for Arts, Crafts, Furniture Fixings, DIY, Hobbies and Science - 10mm dia x 2mm thick x 3mm c/sink - 1.2kg Pull - South - Pack of 10

These are great little magnets. Very strong for their size. Unfortunately they weren't usable for their intended purpose so they were returned.The finish on them is very good and being countersunk allows them to be installed in many places for many uses. The packaging was fine and there were bars at each end to hold the magnets together (the magnets themselves having be tightly packed in a small plastic bag) so care had been taken to try and make sure they arrived in one piece. I had no broken magnets but by definition, Neodymium is a very brittle rare earth material and are prone to corrosion so breakages can happen.Overall I thought they were very good for the price. Remember to slide the magnets apart rather than pull them apart which helps keep the risk of breaking them to a minimum. I also only tightened the screw very carefully until it bit so there was only light pressure on the magnet.

good product but very small and prone to snapping , i wanted them to attach a MDF cover over an open fire place with a steel frame for the winter as its the source of cold blasts of air , i figured screwing and supergluing them would stop them pulling off the MDF , the magnets are very small , button sized and smaller than my smallest screws but quite strong , if you over tighten the screws they will snap apart from that they seem to work well

These are good, very strong magnets. They were great at finding the nails in plaster board, whichmeant that I had found the partition studs in the walls, to enable the fitting of shelves.I was a little surprised that one of the ten magnets broke when it hit the laminate flooring!Overall I was very pleased with how these magnets have saved me a lot of work.

Fundamentally, these magnets are exactly what they say they are. Little magnets with holes in them for attaching to things with screws.On the negative side they are brittle and I do not believe that one of these magnets could lift a 1.2Kg weight (although much stronger than a 'normal' magnet. If you screw them to something, be gentle - they are little and brittle and will snap given half a chance. At the same time, don't allow them to fly onto other magnetic things as the impact will snap them. I've screwed all mine to a little piece of wood to sweep the garage floor for screws and nails but I think I might need some bigger versions as these have to be virtually touching something to pull a screw onto them.

Strong magnetic force and well made, dimensions spot on, used for clamping in engineering environment, cannot fault, be aware, (as with all these types of magnets) they are quite brittle and will break if you hit them fairly hard. Will buy again!

MAGNET Expert Ltd 10 x 2mm 1.1kg Pull N42 Countersunk Neodymium South Ring Magnets (Pack of 10)It is probably worth explaining why anyone might want these. Rare earth magnets are vastly stronger than the usual feeble magnets. These are advertised as having a pull strength of over kilo, which I can quite believe. They are the size of small buttons.With a countersunk hole, it is easy to screw these onto a piece of wood. The exposed top side has a polarity, either north or south. Both north and south will stick to ferrous metal, and will stick to each other. If you need an even greater pull strength, then you can double up the magnets.The magnets are well packed, I was a bit worried when mine arrived packed with a CD, but the CD was fine. These are strong enough to affect pacemakers, watches, etc, so they are not for children or careless handling. Full safety instructions are included.Now that I have these, I can think of a myriad of potential uses around the house, fit a mending plate to one surface and a rare earth magnet to the other and you have a firm grip.These must be one of the coolest DIY supplies ever.

Surprisingly powerful. I’ve bought both north & south facing & they work very well. They are very brittle which is to be expected, so don’t wind a screw into them with a drill or impact driver. If you do then do the final tightening by hand with a screwdriver.

Quite powerful when there is no screw in the middle, sadly looses most of its strength/pulling power when installed.