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===Tool materials===
Tooling is one of the main pillars of plastic injection moulding. Because it directly impacts the end product, getting it right can make or break a plastic injection moulding production.<ref>{{cite web |last1=Preety |first1=Verma |title=Injection Moulding Tooling Process |url=https://originmoulding.com/tooling.php |website=Origin Moulding |access-date=26 October 2023}}</ref> Mild steel, aluminium, nickel or epoxy are suitable only for prototype or very short production runs.<ref name=manPRG /> Modern hard aluminium (7075 and 2024 alloys) with proper mould design, can easily make moulds capable of 100,000 or more part life with proper mould maintenance.<ref>{{cite web|last=Goldsberry|first=Clare|title=Aluminum vs. steel tooling: Which material is right, and how to design and maintain?|url=http://www.plasticstoday.com/articles/aluminum-vs-steel-tooling-which-material-right-how-design-how-maintain-082920122|work=Plastics Today|date=29 August 2012 |publisher=UBM Canon|url-status=live|archive-url=https://web.archive.org/web/20120902213403/http://www.plasticstoday.com/articles/aluminum-vs-steel-tooling-which-material-right-how-design-how-maintain-082920122|archive-date=2012-09-02}}</ref>
[[File:Beryllium-copper mold.jpg|thumb|right|300px|[[Beryllium copper|Beryllium-copper]] insert (yellow) on injection moulding mould for [[ABS resin]]]]
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