Handsaw

A handsaw having a plurality of saw teeth arranged on a longitudinal edge of a saw blade, the saw teeth being configured as prism-shaped teeth each having a shape of a prism, the prism-shaped teeth being configured such that at least adjacent prism-shaped teeth rise at a same rising angle from an edge surface of the longitudinal edge of the saw blade, to cause a space between the adjacent prism-shaped teeth to be constant in a rising direction in which the teeth rise;

• wherein
• the prism-shaped teeth are triangular prism-shaped teeth,
• each triangular prism-shaped tooth with three lateral edges on the prism has two lateral edges configured as lateral edges of a flush lateral face that rises flush with one of front and back surfaces of the saw blade and the remaining lateral edge configured as a lateral edge that rises flush with the other of the front and back surfaces of the saw blade;
• the triangular prism-shaped teeth are arranged in alternating orientations one after another such that the flush lateral faces of the respective teeth are located alternately on the front and back surfaces of the saw blade;
• each triangular prism-shaped tooth has an obliquely cut end face at a tip end of the tooth obtained by obliquely truncating the triangular prism-shaped tooth, the obliquely cut end face being configured to become an oblique triangle that extends across the front and back surfaces of the saw blade;
• among the lateral edges of each triangular prism-shaped tooth, the lateral edge belonging to the flush lateral face has a vertical cutting edge formed thereon;
• and
• among edges belonging to the obliquely cut end face of each triangular prism-shaped tooth, the edge not belonging to the flush lateral face has a horizontal cutting edge formed thereon.