When long-established Sheffield-based cutting tool manufacturer AA Tools was acquired by new owners in 2014, their objective was to modernise the shopfloor equipment with the. very latest CNC machine tool technology. The company manufactures a wide variety of tools and wear parts, alongside offering a sub-contract machining service; but when its production and re-grinding of bespoke cutting tools - many hundreds a month - began suffering a bottleneck due to a reliance on optical grinding, the directors investigated possible solutions and concluded that wire-cut EDM would alleviate the problem. They subsequently selected a Mitsubishi MV1200R machine from the Wellesbourne-based Engineering Technology Group (ETG - www .engtechgroup.com).
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