8mm x 4mm x 2mm Neodymium Block Magnet – N52 Grade 

Key Features:

• Dimensions: 8mm Length × 4mm Width × 2mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 2.1 lbs (0.95 kg) 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for a professional finish
• Magnetization: Axially magnetized through the 2mm thickness (Poles on the 8x4mm faces)
• Shape: Rectangular Utility Block

Material Description:

Our 8x4x2mm N52 blocks offer a perfect balance of a narrow footprint and substantial magnetic depth. The 2mm thickness allows the magnetic field to penetrate through thicker non-magnetic barriers compared to ultra-thin strips. The rectangular geometry ensures the magnet remains perfectly aligned and resists rotation, making it the ideal choice for high-torque couplings and precision industrial sensors.

Handling Advice: At over 2 lbs of pull force, these small magnets are surprisingly strong. They will snap together with force, which can cause the brittle neodymium core to chip. Always separate them by sliding the top magnet off the stack horizontally rather than lifting, and use non-magnetic tools for placement.

Warnings and Safety Information:

• Choking Hazard: Small size is extremely dangerous for children and pets. Keep strictly in a secure container.
• Pinch Hazard: Strong enough to cause minor skin pinches. Handle with a steady grip.
• 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:

• Industrial proximity sensors and robust magnetic triggers
• Heavy-duty 3D-printed latches for electronics and enclosures
• High-performance articulation for gaming miniatures and scale models
• Modular mounting systems for lightweight tools and workshop organization
• Bespoke jewelry box latches where a narrow, strong hold is required