Abstract: A cutting element includes a substrate and a volume of polycrystalline diamond (PDC) on the substrate. The PDC volume has a front cutting face, a lateral side surface, and a cutting edge between the front cutting face and the lateral side surface. The cutting edge has a cutting apex and extends between a first side flat surface and a second side flat surface. The side flat surfaces are disposed on opposing sides of the cutting apex. The cutting edge further includes a first chamfer surface and a second chamfer surface, which are located adjacent to one another and oriented at a first angle relative to one another at the cutting apex. The cutting edge includes one of: an arcuate edge having a radius of curvature; and a linear edge having discrete linear edges adjacent one another and separated by a second angle.