The M1200 range of Neodymium Iron Boron magnets have a gauss level which is typically 2-4 times higher than standard Alnico magnets. These magnets are ideal for a wide range of applications with a working range up to 100oC. The magnets are nickel-plated for enhanced corrosion resistance & appearance.M1218 This 15mm diameter magnet is supplied with a 3.2mm hole countersunk to 7.0mm diameter for easy attachment.M1219 Range of disc magnets are supplied in 5 standard sizes. Order Code Description Diameter mm Height mm SF19VM1218156KQ21XM1219-131YA26DM1219-232YA27EM1219-343YA28FM1219-462YA29GM1219-5105