A 4.5-inch cutting disc is a type of cutting wheel or blade that measures approximately 4.5 inches in diameter. It is commonly used with angle grinders, which are handheld power tools that rotate the disc at high speeds to cut through various materials, such as metal, tile, concrete, and stone.
These cutting discs are often made from abrasive materials such as aluminum oxide or silicon carbide, and may have different thicknesses and hardness levels depending on the type of material they are intended to cut. They may also have different grit sizes, which affect the aggressiveness and smoothness of the cut.
When using a 4.5-inch cutting disc, it is important to wear appropriate protective gear such as eye and ear protection, as well as gloves and long sleeves to avoid injury from sparks and debris. Additionally, it is important to use the correct disc for the material being cut and to follow the manufacturer’s instructions for safe and proper use.

The product to be tested today is a 4.5inch cutting disc.
Measure its size first. The diameter is the standard 115mm, and the thickness is 1mm. It is often used with small handheld angle grinders.
Next is the cutting test. The tester first installed the cutting wheel on the angle grinder and started cutting. It can be seen that the metal can be cut in an average of 3 seconds. The surface of the cut material is bright and does not turn yellow or black, which means that the cutting disc is not hot, and the cutting performance is particularly good.