N52 Neodymium Fishing Magnet Heavy Duty D16–D42mm Countersunk
N52 Neodymium Fishing Magnet Heavy Duty D16–D42mm Countersunk
N52 Heavy-Duty Neodymium Fishing Magnet – D16 to D42mm with Countersunk Hole & Eyebolt
Tackle your toughest retrieval and salvage tasks with this N52 Grade Rare Earth Neodymium Fishing Magnet. Built from premium rare earth neodymium and encased in a carbon steel cup, this magnet delivers exceptional pull force far beyond ordinary magnets — making it the go-to choice for magnet fishing, underwater salvage, industrial mounting, and heavy-duty DIY projects.
Key Features
- N52 Grade Neodymium Core: The highest commercially available grade of rare earth magnet, offering outstanding magnetic field strength and long-lasting permanent magnetism that never needs recharging.
- Wide Size Range (D16–D42mm): Available in multiple diameters to suit everything from compact retrieval tasks to large-scale salvage operations. Select the size that matches your pull-force requirements.
- Countersunk Hole Design: The precision-machined countersunk hole allows a flush bolt or screw to sit perfectly flush, providing a secure, stable attachment point on any flat surface.
- Included Eyebolt: Each magnet comes with a threaded eyebolt, making it quick and easy to attach a rope or cord for magnet fishing and underwater recovery.
- Permanent Magnet: Designed to maintain full magnetic strength over years of regular use — no power source required. A cost-effective, maintenance-free solution for professionals and hobbyists alike.
- Durable Carbon Steel Housing: The steel cup concentrates the magnetic flux toward the working face, maximising pull strength while protecting the neodymium core from impact and corrosion.
- Versatile Applications: Ideal for magnet fishing (retrieving metallic objects from rivers, lakes, and waterways), equipment mounting, workshop organisation, industrial lifting, and more.
Specifications
- Magnet Grade: N52
- Material: Rare Earth Neodymium + Carbon Steel Housing
- Size Range: D16mm to D42mm (multiple variants available)
- Type: Permanent Magnet
- Includes: Countersunk Hole + Threaded Eyebolt
- Country of Origin: Made in China
Perfect For
- Magnet fishing & waterway retrieval
- Underwater salvage & metal recovery
- Industrial mounting & clamping
- Workshop & garage tool organisation
- DIY projects, crafts, and heavy-duty securing tasks
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Frequently Asked Questions
Q: What does N52 grade mean and why does it matter for a neodymium fishing magnet?
A: N52 is the highest commercially available grade of neodymium rare earth magnet, indicating maximum magnetic energy density. For magnet fishing and salvage tasks, a higher grade means greater pull force for a given magnet size — so an N52 magnet will retrieve heavier metallic objects from greater depths compared to lower-grade alternatives.
Q: What sizes are available and how do I choose the right one?
A: This listing covers diameters from D16mm up to D42mm. Smaller sizes (D16–D20mm) suit lightweight retrieval and craft projects, while larger sizes (D32–D42mm) are recommended for heavy salvage work, industrial mounting, or fishing in fast-moving water where higher pull force is needed. Check the individual size variant's listed pull force rating to match your requirements.
Q: Is the eyebolt included, and how do I attach a rope for magnet fishing?
A: Yes — a threaded eyebolt is included with each magnet. Simply screw it into the countersunk hole, secure it firmly, and attach your rope or paracord through the eyebolt loop. We recommend using a strong knot such as a bowline for reliable, safe retrieval during magnet fishing sessions.
Q: Is this magnet waterproof / suitable for underwater use?
A: The carbon steel housing is designed to withstand submersion during magnet fishing and salvage operations. After use in water — especially saltwater — rinse the magnet clean and dry it thoroughly to maintain the housing and extend its service life.
Q: What safety precautions should I follow when handling a strong neodymium magnet?
A: N52 neodymium magnets generate very strong magnetic fields. Keep them away from electronic devices, credit cards, pacemakers, and other magnetically sensitive items. Always handle with care — two magnets or a magnet near steel can snap together with considerable force. Store separately or with protective spacers when not in use.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.