- D1201N52Dimension: 3/8" dia. x 1/32"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$0.35D1202N52Dimension: 3/8" dia. x 1/16"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$0.44D1204N52Dimension: 3/8" dia. x 1/8"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$0.61