NdFeB Magnet Ring OD 40x20x10 (+/-0.1)mm thick Strong Neodymium Permanent Magnets Magnetic Tube Precision 1-5PCS

Dimensions: Diameter 40.00 x Inner Dia 20.00 x 10.00mm thickness
Tolerances: ±0.004″ (+/-0.1mm)
Material: NdFeB, Grade N42
Plating/Coating: Ni-Cu-Ni (nickel) triple plated
Magnetization Direction: Axial (Poles on Flat Ends)
Max Operating Temp: 176ºF (80ºC)
BHmax: 42 MGOe
Brand: HKHK
Other: All magnets passed QC(Br. Flux.Dimensions) and 24-Hour Salt Spray Test.
​