Die casting is a manufacturing process for producing accurately dimensioned, sharply defined, smooth or textured-surface metal parts. It is accomplished by forcing molten metal under high pressure into reusable metal dies. The process is often described as the shortest distance between raw material and finished product. The term "die casting" is also used to describe the finished product.

The term "gravity diecasting" refers to castings made in metal molds under a gravity head. It is known as permanent mold casting in the U.S.A. and Canada. What we call "die casting" here is known as "pressure die casting" in Europe.

Brass is an alloy composed of copper and zinc. Brass is stronger than copper and has a more yellow color and will tarnish when exposed to the air if not coated with a clear protective coating.