- C1616N42Dimension: 1/2" dia. x 1/2"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$1.73C1616N52Dimension: 1/2" dia. x 1/2"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$3.13C1620N45Dimension: 1/2" dia. x 5/8"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$3.48C1624N40Dimension: 1/2" dia. x 3/4"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$4.36C1628N45Dimension: 1/2" dia. x 7/8"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$4.88C1632N40Dimension: 1/2" dia. x 1"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$4.36C1632N52Dimension: 1/2" dia. x 1"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$6.98