RY084 - Neodymium Ring Magnet - 2" Dia x 1/2" ID x 1/4" Thi

• Dimensions: 2" od x 1/2" id x 1/4" 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: 3.19 oz. (90.5 g)
• Pull Force, Case 1: 43.40 lbs
• Pull Force, Case 2: 192.4 lbs
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

These sturdy rings are quite useful.  They are very strong and can easily be bolted to a wall for hanging heavy objects or holding tools in place.  Wrap a little duct-tape around them and drag them along the ground, or even through the sand to retrieve metal objects.