Spanish to English Other Construction / Civil Engineering Glass-cutter saw

Hi,

I'm translating some product descriptions for a retail website from Spanish (Spain) to British English and am having trouble with a phrase. The product in question is a glass-cutter saw and the phrase appears as a bullet point for the product.

Here is the product in question: https://www.amazon.es/dp/B00YTPU002.

I'm really not sure what '6-hoja' means. Could someone help please?

Many thanks in advance!