Understanding cut resistance on your gloves can be kind of confusing. Especially since there are two standards usually slapped on the label. Even though both systems rank the gloves on a 1-5 scale, ANSI and CE ratings use two completely different methods of testing. So make sure you are careful as to which you are looking at.
ANSI Cut Resistance
ANSI cut ratings are based on ASTM. They are tested using the CPPT Tester or the TDM tester. This tester using how much weight is applied and how far the blade needs to travel to cut the material. This is also known as the Rating Force. They then compare the number they calculate to the ANSI 105-2011 table (Classification for Cut Resistance) and then the glove is a given a simple 1-5 number. The higher the rating force, the more cut resistant the material is.
CE Cut Resistance
CE cut resistance are based on the CEN testing method EN388. They are tested using a Couptester. The results from this machine indicate a ratio of the number of machine cycles required to cut the material vs. the number of machine cycles required to cut a specified cotton material. This number is called the Cut Index. They then compare this to the EN388 table (Mechanical Risk Protection) and then the glove is given a simple 1-5 number. The higher the cut index, the more cut resistant the material is.