Magnetic retrieval or recovery of drills and other broken items from drill holes and oil well holes has become something of a specialtiy for Serpent & Dove - Applied Magnetics.
These are also known as fishing magnets. Depending on the size, shape and depth of the steel item to be recovered this may involve a specifically designed magnetic retriever providing a shaped magnetic field that is suitable for the job.
For underwater work, these recovery or fishing magnets are usually sealed in a robust, reinforced stainless steel housing and use neodymium (rare earth) magnetic elements to form a pattern of very strong North/South/North/South magnetic fields to suit the application. Serpent & Dove has supplied many devices, some for deep-sea use - and often as a matter of urgency.
Our consultants will provide knowledge and sensible answers.
Please phone: +61(2) 9971 7577 for magnet sales or email us.