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The industry then grew into the earliest corporate builders such as [[Brown & Sharpe]], the [[Warner & Swasey Company]], and the [[Pratt & Whitney Measurement Systems|original Pratt & Whitney company]]. In all of these cases, there were product manufacturers who started building machine tools to suit their own inhouse needs, and eventually found that machine tools had become product lines in their own right. (In cases such as B&S and P&W, they became the main or sole product lines.)
In contrast, [[Colt's Manufacturing Company|Colt]] and [[Ford Motor Company|Ford]] are good examples of product manufacturers that made significant advances in machine tool building while serving their own inhouse needs, but never became "machine tool builders" in the sense of having machine tools become the products that they sold. National-Acme was an example of a manufacturer and a machine tool builder merging into one company and selling both the machines and the products that they made ([[automatic lathe|screw machines]] and fasteners).<ref name="Rose1990pp564-565">{{Harvnb|Rose|1990}}, [https://books.google.com/books?id=IT1NVT1vEwUC
Until the 1970s, machine tool builder corporations could generally be said to have nationality, and thus it made sense to talk about an American machine tool builder, a German one, or a Japanese one. Since the 1970s, the industry has [[globalization|globalized]] to the point that assigning nationality to the corporations becomes progressively more meaningless as one travels down the timeline leading up to the present day; currently, most machine tool builders are (or are [[Subsidiary|subsidiaries]] of) [[multinational corporation]]s or [[Conglomerate (company)|conglomerates]]. With these companies it is enough to say "multinational corporation based in country X", "multinational corporation founded in country X", etc. Subcategories such as "American machine tool builders" or "Japanese machine tool builders" would be senseless because, for example, companies like [[Hardinge, Inc.|Hardinge]] and [[Yamazaki Mazak Corporation|Yamazaki Mazak]] today have significant operations in many countries.
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In 1970, [[Wayne Moore (swimmer)|Wayne R. Moore]] wrote about the Moore family firm, the Moore Special Tool Company, who independently invented the [[jig borer]] (contemporaneously with its Swiss invention). Moore's monograph, ''Foundations of Mechanical Accuracy'',<ref name="Moore1970">{{Harvnb|Moore|1970}}.</ref> is a seminal classic of the principles of machine tool design and construction that yield the highest possible [[accuracy and precision]] in machine tools (second only to that of [[metrology|metrological]] machines). The Moore firm epitomized the art and science of the [[tool and die maker]].
[[David F. Noble]]'s ''Forces of Production'' (1984)<ref name="Noble1984">{{Harvnb|Noble|1984}}.</ref> is one of the most detailed histories of the machine tool industry from World War II through the early 1980s, relayed in the context of the social impact of evolving automation via NC and CNC. Also in 1984, [[David A. Hounshell]] published ''From the American System to Mass Production'',<ref name="Hounshell1984">{{Harvnb|Hounshell|1984}}.</ref> one of the most detailed histories of the machine tool industry from the late 18th century through 1932. It does not concentrate on listing firm names and sales statistics (which Floud's 1976 monograph<ref name="Floud1976">{{Harvnb|Floud|
In 1989, Holland published a history, ''When the Machine Stopped'',<ref name="Holland1989"/> that is most specifically about Burgmaster (which specialized in turret drills); but in telling Burgmaster's story, and that of its acquirer [[Houdaille Industries|Houdaille]], Holland provides a history of the machine tool industry in general between World War II and the 1980s that ranks with Noble's coverage of the same era (Noble 1984)<ref name="Noble1984"/> as a seminal history. It was later republished under the title ''From Industry to Alchemy''.
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== Bibliography ==
{{sfn whitelist |CITEREFNoble1984}}
* {{Colvin1947}}
* {{citation | last = Floud | first = Roderick C. | year = 2006 | orig-year = 1976 | title = The British Machine Tool Industry, 1850-1914
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