Star SU is the go-to-market cooperative partnership of Star Cutter Company of Farmington Hills, MI, and SU America, Inc. of Hoffman Estates, IL, the US sales and manufacturing unit to SAMP S.p.A of Bologna, Italy. The companies together represent one of the worlds largest gear machine, tool and gear tool manufacturing producers. Star Cutter Company manufactures tool and cutter grinding machines as well as a variety of precision cutting tools, including gear tools, gundrills, form tools and reamers, rifle buttons and carbide blanks and preforms. (less)