- D0601N40Dimension: 3/16" dia. x 1/32"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$0.14D0601N52Dimension: 3/16" dia. x 1/32"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$0.16D0602N40Dimension: 3/16" dia. x 1/16"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$0.18