OSG USA, Inc. makes cutting tools and cold forming products and is the North American operation of OSG Corporation. OSG’s manufacturing history dates to 1938, when Hideo Osawa established OSG Grinding Co., Ltd. in Tokyo and began making taps and dies; the company later expanded its production to screw gages, rolling dies, end mills, drills, and cutter bodies. OSG USA was established in 1968 and relocated its headquarters to St. Charles, Illinois, in 2019.
Ohio Drill & Tool CompanyOhio Drill & Tool Company has been manufacturing precision-ground drills and cutting tools in the same Homeworth location since 1948. Founded by George and Helen Sanor as a basement maker of ballpoint-pen drill bits, the family-owned business now spans three generations and continues to make its tools in the USA. Its work is built around precise workmanship, personal service, and dependable order fulfillment.HOMEWORTH, OH
Hewlett ManufacturingFor more than 60 years, Hewlett Manufacturing of Linesville, Pennsylvania, has made diamond-coated sharpening tools, including the original oval diamond steel perfected by founder Harlan D. Hewlett. The family business grew from OEM manufacturing into the JewelStik® brand and supplies sharpening tools to established knife companies while producing its products in the USA for home, shop, and professional use.LINESVILLE, PA
CGS ToolFounded in Cleveland in 1974, CGS Tool manufactures solid carbide end mills and custom cutting tools for precision machining, now operating from Medina, Ohio. The company makes its tools in the United States and supports demanding aerospace, medical, automotive, and advanced-manufacturing work with application-focused engineering for standard and unusual machining requirements.MEDINA, OH
PROper CutterFounded in 1974 by Larry D. Proper in a two-stall garage, PROper Cutter reconditions industrial cutting tools through CNC and manual tool-and-cutter grinding in Guys Mills, Pennsylvania. Now in its second generation of ownership, the company operates from a 5,500-square-foot facility and also supplies made-in-USA cutting tools and PVD coatings. PROper Cutter marked its 50th anniversary in 2024 and serves customers locally and across Ohio, Pennsylvania, and New York.GUYS MILLS, PA