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

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.