The late Bronze Age was a critical stage in the transition from stone tools to metal tools. With the maturity of bronze (copper-tin alloy) smelting technology, humans broke through the limitations of early stone tools and began to mass produce more durable and efficient metal tools. The emergence of the axe (Socketed Axehead) was an important technological breakthrough in this period-compared with the earlier "Flat Axe" (Flat Axe, which is easy to loosen by binding and fixing the wooden handle), its mortise hole design (inserting the wooden handle into the conical or cylindrical hole of the axe head, and fixing it by the close fit of metal and wood) greatly improved the stability of the tool.

This seemingly simple tool is not only a practical object of daily life, but also a "micro window" to observe the folk culture of Victorian (1837-1901) Scotland ". Flat iron (Flat Iron) is the most mainstream clothes finishing tool in the 19th century before the industrial revolution, its design is simple but the function of the key-by heating the metal surface, the use of pressure to remove clothing wrinkles. Before the popularity of steam irons (invented at the end of the 19th century), flat irons were the "essential artifact" for housewives, tailors and laundryers ".