Bon Tool Co., a Gibsonia, Pa.-manufacturer and distributor of hand tools, is celebrating its 50th anniversary in 2008. Built on the strength of a single masonry product, Bon's product line has expanded to nearly 5000 professional-grade tools for masonry, concrete finishing, decorative concrete, drywall, plaster, flooring, roofing, and general construction.

The development of the masonry guide, an innovation that is used for laying masonry units with-out building a lead, launched the company in 1958. Carl A. Bongiovanni heads the family-owned business.