Specifications(1"=25.4mm; 1lbs=0.453kg)

These are very precise magnets with high precision tooling tec. The magnets can be widely used in electronics, sensors, filter. You may be able to find them in filters, labs, satellites, aircrafts, etc.  

• Dimensions: Diameter 100.00 x 10.00mm thickness, M10 CS hole
• Tolerances: ±0.004" x ±0.004" (+/-0.1mm x ±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
• 
  
• Other: All magnets passed QC(Br. Flux.Dimensions) and 24-Hour Salt Spray Test.