Brass is a metal alloy made with the combination of copper and zinc, but the properties of copper and zinc may be different. Brass has strong corrosion resistance, high conductivity, and excellent mechanical properties, and one main advantage of a CNC machine is its working with brass

It has good machinability, low friction, and higher quality can achieve by decreasing the damp vibration and eliminating the bar whip. It can produce brass alloys with unique features combined with other metals such as lead, iron, tin, and aluminum.

Aluminum has a small diameter for optimal feed than plastics and wood. Red brass is cheaper than those copper-zinc alloys, which prove highly resistant to stress corrosion cracking and are easy to finish.

Brass is one of the most accessible machines compared to aluminum and is the most used material. It has high malleability than zinc and copper. Aluminum requires a unique tool for cutting while brass can't stick during the machining process while aluminum is prone to stick to machining tools.