DescriptionBuy Round Electromagnets 12 Volt online with Bunting – eMagnets™The E-Magnets UK range of 12 Volt round Electromagnets.Comprising of 11 standard sizes from 1/2 inch (12.7mm) Diameter right through to 6 inch (152.4mm) Diameter with a pull ranging from 1.8 to a huge 453 Kgs.Internally threaded for mounting.Please Note : Only to be used when in full face to face contact with a section of magnetic material as a gap of only 0.1mm will result in a drop off in performance of around 90%. This includes paints and non-magnetic coatings.