The primary function of the blade of a folding knife is cutting, rather than providing a non-slip grip. However, some folding knives may have additional features to enhance grip and prevent slipping. This can include textured handle materials, ergonomic designs, or even finger grooves or jimping (notches or ridges) on the spine of the blade. These features can help improve grip and control while using the knife, reducing the chances of slipping during use. Nevertheless, the primary consideration for a non-slip grip should be the handle design and materials, rather than the blade itself.