A cutting blade and a cutting assembly

A cutting blade 120 comprising: a body that includes a cutting edge 138 and an upturn 142, an attachment point 150 which is configured to pivotably attach the cutting blade to a mounting beam, and a leading edge 148 wherein a reference axis 149 extends along the leading edge; wherein an upturn axis 166 extends along a forward-most edge 140 of the upturn, wherein the upturn is oriented at an upturn radial angle which is the angle between the upturn axis and the reference axis, and wherein the upturn radial angle is in the range of substantially 0° to substantially 30°. Also claimed is wherein the upturn radial angle is measured as the angle (164, figure 5) between an axis (166) extending along the foremost edge of the upturn and a reference axis (172) that extends from the centre of rotation (201) to the outer tip (174) of the upturn (or to an intersection point being the intersection between an axis that extends along a rear edge of the upturn and an axis that extends along a base edge of the upturn).