8mm x 8mm (5/16" x 5/16") Neodymium Cylinder Magnet – N52 Grade 

Key Features:

• Dimensions: 8mm diameter × 8mm thickness (Approx. 5/16" × 5/16")
• Precision Tolerance: ±0.05mm – Ideal for exact-fit CNC or 3D-printed housings
• Magnet Grade: N52 
• Pull Force: Approx. 6.8 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for a durable, professional finish
• Magnetization: Axially magnetized (Poles on the flat circular 8mm ends)
• Shape: Square Profile Cylinder

Material Description:

Our 8x8mm N52 cylinders are designed for maximum flux density in a compact footprint. The 8mm depth allows for a larger volume of magnetic material compared to thin discs, resulting in a magnetic field that extends further from the surface. This "deep-field" property makes them ideal for applications where the magnet must act through a gap or non-magnetic barriers like plastic or wood.

Handling Advice: These are small but deceptively strong. They will snap together with force from several inches away. Always handle with a steady grip and use a sliding motion to separate them. Keep away from sensitive electronics and magnetic storage media.

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 care.
• Medical Safety: KEEP AWAY from pacemakers and other implanted medical devices.
• Brittleness: Neodymium is a ceramic; these will shatter if allowed to slam into each other or hard surfaces.

Applications:

• Precision Hall-effect sensors and magnetic proximity switches
• High-performance 3D-printed latches and removable panels
• Advanced tabletop gaming (ideal for magnetizing heavy weapon swaps)
• Small-scale industrial triggers and mechanical couplings
• Educational science experiments demonstrating deep magnetic flux