UNIMERCO WALMSLEY specialises in supplying inserts and related tool solutions to the industrial market in the UK, including the general machining, aerospace, off-shore and medical industries. The tooling concept comprises standard and customised tools, tool maintenance and optimisation guidance. UNIMERCO WALMSLEY (former Derek Walmsley Ltd.) was established in 1978 and has product development, production, sales and service in Sheffield. The company services all of the UK. In 2008, the company became part of UNIMERCO GROUP, with companies in Europe, the USA and Asia