4mm x 2mm (5/32" x 5/64") Neodymium Disc Magnet – N52 Grade | The Hobbyist Standard

Key Features:

• Dimensions: 4mm diameter × 2mm thickness (Approx. 5/32" × 5/64")
• Magnet Grade: N52
• Pull Force: Approx. 0.94 lbs (magnet to steel)
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for a durable finish
• Magnetization: Axially magnetized (Poles on the flat 4mm circular faces)
• Shape: Disc

Material Description:

Our 4x2mm N52 neodymium discs are highly sought after for their versatility. At 2mm thick, they provide a much deeper magnetic field than thinner discs, resulting in a significantly more powerful "snap." They are the strongest permanent magnets commercially available for this compact footprint.

Handling Advice: Even at 2mm thickness, Neodymium is brittle. Avoid letting these magnets clack together from a distance, as the impact can cause the plating to chip or the magnet to shatter. Always slide them apart to separate.

Warnings and Safety Information:

• Choking Hazard: Small size is dangerous for children and pets. Keep strictly in a secure container.
• Pinch Hazard: The N52 pull force at this thickness is strong enough to cause a sharp pinch. Handle with care.
• Medical Safety: Keep away from pacemakers and other sensitive medical implants.
• Electronics: Avoid direct contact with magnetic storage media and mechanical watches.

Applications:

• Magnetizing miniature bases (ideal for 25mm to 40mm bases)
• Heavy-duty weapon and limb swaps for hobby models
• Magnetic sensors and industrial reed switches
• DIY home projects like magnetic spice racks or tool organizers
• Precision engineering and product prototyping