10mm x 3mm x 0.5mm Neodymium Block Magnet – N52 Grade

Key Features:

• Dimensions: 10mm Length × 3mm Width × 0.5mm Thickness
• Precision Tolerance: ±0.05mm
• Magnet Grade: N52
• Pull Force: approx. 0.57 lb
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized through the 0.5mm thickness (Poles on the flat 10x3mm faces)
• Shape: Ultra-Thin Rectangular Strip

Material Description:

Our 10x3x0.5mm N52 blocks are designed for applications requiring a long, narrow magnetic bond with zero vertical bulk. The 10mm length provides excellent leverage for closures, while the 3mm width allows it to be tucked into tight margins or seams. This "strip" profile is highly sought after for high-end bookbinding, leathercraft, and luxury packaging where a circular magnet would be too wide.

Handling Note: Due to the elongated shape and 0.5mm profile, these magnets are exceptionally fragile. They can snap easily if bent or if allowed to jump toward metal surfaces. Always separate them by sliding the top magnet off the stack horizontally.

Warnings and Safety Information:

• 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.
• Fragility: Neodymium is a ceramic; narrow, thin strips can crack easily under impact. Handle with extreme care.
• Electronics: Safe for modern devices at a distance, but avoid direct contact with magnetic storage media.

Applications:

• Hidden magnetic closures for high-end leather wallets, bags, and cases
• Invisible latches for bespoke bookbinding and portfolio covers
• Stealth edge-mounting for graphics and signage in museum displays
• Precision sensor triggers in ultra-slim electronic device prototypes
• Micro-detailing for architectural scale modeling and dioramas