Description
The SMBN0400 countersunk neodymium magnet is made from high performance N42 NdFeB, with Nickel coating. The dimension of this item is 1/4″ × 1/4″ × 1/4″ (- 1/16″ hole), magnetized through thickness, with the tolerance of ±0.004″ × ±0.004″ × ±0.004″. The weight of this super strong neodymium magnet is 0.00425 lbs. It can pull up to 4.05 lbs steel. And the surface field is up to 4045 gausses.