The use of hacksaws to cut metal.The use of cold chisels to cut metal.The use of files on metal.

Guillotines used for cutting sheet metal. Notchers or nibblers for both metals and plastics. Folding machines used to bend sheet metal. Rolling machines used to roll sheet metal and wires and universal machines which combine cutting, folding and rolling operations.

Controlling the dust and fumes from polishing metals.

Cutting oils are used in surface grinding, drilling, turning, milling and power-sawing metals.