I put 5 magnets on either side of this saw blade guide. I'm surprised that this thing, which is made of very light pine, will barely stick to the fridge or a piece of steel. Definitely not strong enough for what I got it for. I'm surprised after reading all of the reviews about how strong they are. This is the 12mm x 3mm version and I think most of the reviews are about the larger size. I think they would be fine for very very light use applications but not nearly as strong as most magnets I purchase.
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