The cutting capacity for nibbler shears varies depending on the material you are cutting due to the material’s level of hardness.The cutting capacity can often be represented in gauge measurement, which is the thickness measurement for steel, although most also give the millimetre thickness.
As a general rule, the harder the material is that you are cutting, the smaller the cutting capacity will be.
Nibbler shears come in one size and can cut through mild steel (steel with a hardness of no greater than 120HB) of up to 0.9mm (20 gauge; 0.035″). On the gauge scale, thicker materials have a lower number, while thinner materials have a higher gauge number.
Listed below are the cutting capacity for other materials: