An anvil is a metalworking tool consisting of a large block of metal, with a flattened top surface, upon which another object is struck.
Single-horn anvil
A blacksmith working iron with a hammer and anvil
A blacksmith working with a sledgehammer, assistant (striker) and Lokomo anvil in Finland
Anvil with upsetting block
Metalworking is the process of shaping and reshaping metals in order to create useful objects, parts, assemblies, and large scale structures. As a term, it covers a wide and diverse range of processes, skills, and tools for producing objects on every scale: from huge ships, buildings, and bridges, down to precise engine parts and delicate jewelry.
Turning a bar of metal on a lathe.
Le Marteleur by Constantin Meunier (1886)
A turret lathe operator machining parts for transport planes at the Consolidated Aircraft Corporation plant, Fort Worth, Texas, USA in the 1940s.
A combination square used for transferring designs.