Abstract: A tool includes an elongated handle with an end recess and a side notch for latching, and a plurality of different replaceable heads. Each replaceable head includes an elongated rectangular section shaped to fit stably into the recess for providing torsional and lateral support, an operative end, and a latch releasably engaging the side notch to retain the head in the recess. The different heads can include different operative ends with structure for providing different operative functions, such as a head with oppositely-positioned partially-shielded blade tips and/or with different blade throat sizes, a head with pizza-cutting wheel, a head with hammer or wrench feature, and the like.