• Dimensions: 3/8" od x 1/8" id x 1/4" id x 1/8" thick
• Tolerances: ±0.002" x ±0.002" x ±0.002" x ±0.002"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.0532 oz. (1.51 g)
• Pull Force, Case 1: 3.56 lbs
• Pull Force, Case 2: 6.92 lbs
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

Countersunk rings with a 1/8" hole and 90 degree taper. This means that the large hole is 1/4" in diameter. The south pole is on the side of the magnet with the large hole.

These countersunk rings can be used for a wide range of applications including closures for cabinet doors and handbags.