20mm x 10mm x 1mm (25/32" x 25/64" x 1/32") Neodymium Block Magnet – N52 Grade

Key Features:

• Dimensions: 20mm Length × 10mm Width × 1mm Thickness
• Precision Tolerance: ±0.05mm
• Magnet Grade: N52 
• Pull Force: Approx. 2.65 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for corrosion resistance
• Magnetization: Axially magnetized through the 1mm thickness (Poles on the large 20x10mm faces)

Material Description:

Our 20x10x1mm N52 blocks are built for professional engineering and high-end craft projects. The elongated 20mm length provides exceptional leverage for magnetic closures, while the rectangular geometry ensures the magnet resists rotation when recessed into wood, plastic, or leather. At only 1mm thick, these are a top choice for "invisible" latches in luxury portfolios and presentation boxes.

Handling Advice: These magnets are powerful and brittle. Because they are quite thin relative to their surface area, they can snap easily if allowed to jump toward metal surfaces. Always separate them by sliding the top magnet off the stack horizontally and handle with a steady grip to avoid chipping the brittle neodymium core.

Warnings and Safety Information:

• Pinch Hazard: Strong enough to cause minor skin pinches. Handle with care.
• Choking Hazard: Small size is dangerous for children and pets. Keep strictly in a secure container.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants.
• Electronics: Safe for modern devices at a distance, but avoid direct contact with magnetic storage media.

Applications:

• Precision 3D-printed removable panels and battery covers
• Invisible latches for leather portfolios, premium stationery, and luxury packaging
• Edge-mounting for graphics and signage in museum and gallery displays
• Custom joinery and "secret" compartment latches in fine woodworking
• Industrial proximity sensors and low-profile magnetic triggers