bar magnet only has a strength of 1

The tall foil is often used for storage shelves

You really have to know what you are doing before throwing yourself into handling a magnet of this size and strength

Kan også sættes på træblokke (se fotos) ved at bore et 30 mm

Power magnet, Ring 20x4x5 mm. 3M bar magnet only has aRing magnet made of neodymium Permanent magnets Diameter: 2 cm. Height: 0. 5 cm. Hole size: 0. 42 cm. Strength: approx. 7. 3 kg. Strong neodymium supermagnet with a hole in the middle. The magnetism sits on the large surfaces. SPECIFICATIONS: Strength: approx. 7,300 g. Material: NdFeB Magnetism: N45 Max. temperature: 80C Surface: nickel plated (Ni Cu Ni) NOTE! The magnet is NOT countersunk.