This product measures 1-1/4" in diameter and 1/8" in thickness and is made of a grade N52 neodymium, iron, and boron magnetic alloy blend. This magnetic blend is patent licensed and made under the ISO 9001 quality systems. They are plated in a nickel-copper-nickel coating for a shiny corrosion-resistant finish. The North and South poles are on the flat sides. The pull force of this magnet is 16.5 lbs. This is a great item for use in personal projects as well as for crafts and closures and can also be used to help keep objects secured or fastened to any ferrous surface.
Material: Sintered NdFeB. Grade N52
Gauss Ratings: 14,400 Gauss
Holding Power: 16.5 lbs
Pole Orientation: Axially magnetized, the poles are on the two flat surfaces
Coating: Ni+Cu+Ni 3 layer plated, the best coating available
Tolerance: The tolerances of all the dimensions are +/-0.002in with the coating.