18 Pound Pull Strength Gold Silver Metals Jewelry Test Magnet

Specifications

About this product

Metal Testing Rare Earth Magnet. Dimensions are: 3/4" (19mm) diameter x 7/8" (22mm) tall head, 2 1/2" (64mm) overall length, 3/8" (10mm) diameter handle, 1/2" (13mm) diameter heavy-duty stainless steel split ring. Small, yet strong magnetic pull. We have mounted a strong 1/2" diameter x 1/2" tall cylinder N52 grade neodymium-iron-boron magnet in a brass case for industrial use. It comes with an extra heavy duty split ring for attaching a hook, rope, wire, belt loop, fishing line, etc. Identify/sort costume (fake) jewelry, which often uses steel as the base material under the plating. Identify and sort steel grades and metal alloys that contain iron or cobalt. Identify/sort solid brass and bronze from plated steel items (handy in the antique market and hardware store). A tight fitting vinyl cap is also included. Great for automotive uses in identifying bondo repairs on cars. Will not scratch the paint when used with cap on. The magnet insert is rated at 18 lbs (as with all magnets, this rating depends on the magnet mating to a smooth, flat, unpainted steel surface). It holds a 13 lb sledge hammer with rough and rounded edges in mid air with no problems. The brass casing protects the magnet from chipping and breaking, and makes removing iron and steel shavings much easier. Caution: do not store this magnet near cell phones and/or credit cards. NOTE: This size is a little too heavy for your key chain. See our smaller sizes for hanging on your key chains. This size is not strong enough for finding nails through drywall. Proudly made in the USA!