William H. Henderson had been manufacturing and selling cutting tools for the metal and wood cutting industry for over 30 years.  In 1980, partnered with his son David, the Henderson's moved from Canada to Ohio and started

 Warrensville File & Knife, Inc.

    The corporation specializes in Steel Hand Files - engineers and machinist American Pattern as well as precision Swiss Pattern for every need of industry. 

    In 1987 the headquarters moved to Norcross, Georgia where it is today. In 1994 an expansion to better service internationally, Warrensville File & Knife (UK) sales office and warehouse was started in St. Helens, England.