[application] Great magnet teseter for testing brass, gold, silver, jewelry, and other metal tests you need. it works well for keychains as it has
Strong Keychain Magnet for Testing Brass, Neodymium Pocket Magnets for Purse,Gold,Silver,Jewelry,Ferrous Metals Test Magnet Hanging Keys Holder
An Easy Way to Tell if Your Gold Jewelry Is Fake
This 12mm nickel-plated keychain magnet offers strong magnet power in a handy keychain. It is perfect for jewelers, recyclers, coin dealers, or anyone that needs to make fast assessments of jewelry, antiques, and industrial metals for iron, nickel, or cobalt content. Determine if jewelry is silver or gold plated by testing if ferrous metals are used as the base metal (excluding some nickel alloys). If a magnet responds to jewelry, it is not fine silver or anything near pure gold.
Envistia Mall Keychain Magnet Tester for Gold, Silver, Jewelry & Precious Metals with Rare Earth Neodymium Magnet
BattleTech: Eris ERS-2N (Premium Miniature), Battletech Miniature
BattleTech: Eris ERS-2N (Premium Miniature), Battletech Miniature
Revolution Machines Gold Test Magnet Check Jewelry Silver Scrap Metal N52 Key Ring KMB03 Key Ring
Test Magnet For Brass, Silver & Gold Metals
N52 Grade 18 LB pull strength Neodymium test magnet! Identify/sort costume (fake) jewelry, which often uses steel as the base material under the
18 Pound Pull Strength Gold Silver Metals Jewelry Test Magnet
Revolution Machines Gold Test Magnet Check Jewelry Silver Scrap Metal N52 Key Ring KMB03 Key Ring