We are the World's Leading Machine Knife Manufacturer. Founded in 1908 (as Wolstenholme Machine Knives) TGW is a family owned company based in Sheffield, England (manufacturing and sales) and in Cincinnati, USA (sales and marketing for N.America) TGW has adopted lean manufacturing techniques, abandoning the usual process-oriented production in favour of a product based approach with the aim that operators become product experts for continuous improvement. We manufacture and sell high grade straight, circular and formed knives for the packaging, food processing, graphics, medical, paper converting and other industries.