Helicoidal

It has very strong cutting power and is suitable for professional use and for use on weeds.

- It directly affects the performance of the grass trimmer, as it determines its durability during use and its compatibility with the power of the machine. Thicker line requires a more powerful engine, while thinner line is suitable for lighter tasks.

- When cutting, thicker line is more effective on dense or tough vegetation, offering a more "aggressive" result, while thinner line ensures a cleaner and more precise cut on low-density grass.