The HART Magnetizer is your ultimate tool enhancement designed to make your everyday tasks a breeze. This ingenious device packs a punch with its powerful N35 rare-earth magnets offering you the versatility to magnetize and demagnetize screwdriver tips and bits with ease. But that s not all – we ve added a bonus feature that will surely come in handy: a built-in bottle opener! Also it comes with a limited lifetime warranty so you can trust the quality.