3mm x 3mm x 2mm (1/8" x 1/8" x 5/64") Neodymium Square Block – N52 Grade 

Key Features:

• Dimensions: 3mm Length × 3mm Width × 2mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 0.7 lbs
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized through the 2mm thickness (Poles on the 3x3mm faces)
• Shape: Square Micro-Block

Material Description:

Our 3x3x2mm N52 blocks are designed for professional engineering and intricate hobbyist projects. The square geometry provides a stable, non-rolling base, which is critical when mounting magnets into small 3D-printed parts or CNC-machined recesses. At 2mm thick, this magnet provides a deeper magnetic field than ultra-thin strips, ensuring a reliable trigger for sensors or a secure "click" for miniature latches.

Handling Advice: NOTICE: These magnets are extremely small and fragile. Due to their sharp corners and N52 strength, they can chip if allowed to snap together. Always use non-magnetic tweezers for precise placement and separate them by sliding the top magnet off the stack horizontally.

Warnings and Safety Information:

• Choking Hazard: EXTREMELY DANGEROUS for children and pets. Their small size makes them easily ingestible.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants.
• Ingestion Warning: Swallowing multiple magnets can cause serious internal injury. Seek immediate medical help if ingested.
• Electronics: Safe for modern devices at a distance, but avoid direct contact with magnetic storage media.

Applications:

• Precision sensor triggers for micro-electronics and wearables
• Articulation for 28mm gaming miniatures and high-detail model kits
• Hidden latches for micro-jewelry boxes and small-scale enclosures
• Custom reed switch activation in confined industrial spaces
• Miniature 3D-printed magnetic couplings and removable parts