Novel blade of rotary cutter

Disclosed is a novel blade of a rotary cutter. The novel blade of the rotary cutter mainly solves the problems of enlarging load of the rotary cutter, unevenness of height of products and poor roughness of an ordinary blade of the rotary cutter. The novel blade of the rotary cutter comprises a blade body (1). The blade body (1) is a tooth-shape cutting edge which is composed of a main cutting angle (4), an auxiliary cutting angle (2) and a cutting edge (3). The angle of the main cutting angle (4) is 45 degrees. The angle of the auxiliary cutting angle (2) is also 45 degrees. The blade body (1) is provided with a cutter front angle (5), wherein the angle of the cutter front angle (5) is between 22 degrees and 26 degrees. According to the novel blade of the rotary cutter, the tooth-shaped cutting edge is adopted, when the blade is used for cutting wood, angle for the cutting edge to cut the wood is changed to be well adapted to wood fibers in all directions. Roughness of a wood plate cut by the blade is good. T