The SMRN0701 ring neodymium magnet is made from high-performance N42 NdFeB, with Nickel coating. The dimension of this item is 1" od × 3/16" id × 1/8" thick, magnetized through thickness, with the tolerance of ±0.004" × ±0.004" × ±0.004". The weight of this super strong neodymium magnet is 0.0256875 lbs. It can pull up to 12.41 lbs steel.
Download a PDF Specification Sheet