R421 - Neodymium Ring Magnet - 1/4" Dia x 1/8" ID x 1/16" Thi

• Dimensions: 1/4" od x 1/8" id x 1/16" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.01 oz. (0.283g)
• Pull Force, Case 1: 0.95 lbs
• Pull Force, Case 2: 2.70 lbs
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

The R421 is a very affordable little ring magnet. Excellent for use in model miniatures, custom packaging, and even small electronic devices.