Would this not be a reaction to the chances Brexit upsets a lot of existing supply chains where these parts are currently sourced from EU manufacturers? Now with the prospect of those routes of supply being disrupted by tariffs and border checks the emphasis is shifting from buying them in from mainland Europe to finding UK based manufacturers, thus avoiding tariffs and customs checks, so your machine tool manufacturers have their eyes lighting up at this potential new market in the UK where the manufacturers are looking to expand operations and pick up the shortfall of what used to be bought across the channel.
It's great news for those companies making machine parts and the UK manufacturers buying those parts are probably pretty excited by the prospect of ramping up their production and stealing orders from their competitors in the EU too but I doubt it's such great news for the companies that are buying these parts to build planes, cars, engine or whatever else. Presumably the reason a lot of companies went for EU suppliers originally was that they were the more cost effective options, money talks louder than pretty much anything else in business, and it's only escalating costs due to post-Brexit tariffs and restrictions that make the UK suppliers viable so now they're suffering from inflation in their supply chain, which could restrict their output if the cashflow is tight or make their products more expensive maybe even ultimately unaffordable in some cases. What if their businesses collapse as a result? Then the UK suppliers that were buying up machine tools and expanding their operations start losing their market, they might look to take on their EU counterparts selling into mainland Europe but now they're hampered by the tariffs and checks too so they're fighting a losing battle and their intial optimism turns out to be shortlived as they can't break into any other markets.
It's going to be very complicated to piece the whole thing together and get any sort of idea how it plays out at a national level but i think it's a bit naive to focus on one particular business and make assumptions based on that, it's far too narrow a view.