Hey, that's a Handy Magnet!
Retrieval and metal testing magnet for ferrous detection in gold, silver, antiques and scrap metal.
Identify and sort steel grades and metal alloys that contain iron, nickel, or cobalt.
Identify/sort chrome plated items from polished aluminum, silver, and non-magnetic grades of stainless steel
Identify/sort solid brass and bronze from plated steel items (handy in the antique market and hardware store)
Identify/sort some types of costume (fake) jewelry, which often use steel alloy as the base material under the plating.
1/2" (12.5mm) diameter x 1/2" (12.5mm) tall head
1-3/4" (45mm) overall length
1/2" (12.5mm) diameter stainless steel split ring.
Handy Magnets are manufactured in the USA by Revolution Machines LLC
Here are some possible uses:
Used as a very powerful magnetic pickup, not like those 1/2 pound jokes at the hardware store.
Also handy for science experiments involving ferromagnetism
The aluminum casing protects the magnet from chipping and breaking and makes removing iron and steel shavings much easier. These are made in the USA.
See my other listings for handy industrial magnets and tools. Custom work is available, let me know what you are looking for and I can tailor a product and listing for you.