FIRST4MAGNETS N42 Neodymium Magnet for Engineering, Manufacturing and Technology Applications - 20mm O.D. x 10mm I.D. x 5mm thick - Pack of 20

PERFECT FOR ENGINEERING & MANUFACTURING. They also have many uses in engineering and manufacturing where small size and maximum strength are required.

CORROSION-RESISTANT PREMIUM COATING. Coated with three layers of nickel, copper, and nickel to reduce corrosion and provide a smooth and clean finish.

RESISTANT TO DEMAGNETISATION. Excellent resistance to demagnetisation.

STRONG MAGNETIC HOLD. Each magnet can support a steel weight of up to 3.2kg vertically from the magnetic face when in flush contact with a mild steel surface.

SPECIFICATIONS. 20mm outer diameter x 10mm inner diameter x 5mm thick. Diametrically magnetised with polarities runnung 90 degrees opposite 2mm holes.