The HONEYWELL part 102MG15 is a high-quality Alnico VIII Sintered Magnet designed for actuating Hall-effect sensors. The magnet is encased in a durable aluminum holder with a 4-40 threaded hole for easy installation. With a compact size of 12.19mm in width and 7.87mm in diameter (0.48in W x 0.31in Dia), this magnet provides reliable and precise magnetic field characteristics for various applications. Trust Honeywell Magnets for exceptional performance and long-lasting durability.