Blade for high-speed steel shovel drill

The utility model relates to a blade for a high-speed steel shovel drill. The blade comprises a fixed part and a cutting part, and is characterized in that the fixed part comprises a positioning groove and screw holes; and the cutting part comprises an edge margin, a polishing chisel edge, a chip removal partition groove, a chip breaker groove and a main cutting edge. The positioning groove is formed in the middle of the lower end of the blade for the high-speed steel shovel drill; the two screw holes are formed in the middle of the blade for the high-speed steel shovel drill; axes of the screw holes are perpendicular to the lateral surface of the blade; a vertex angle of the main cutting edge is 90 to 150 degrees; the polishing chisel edge is arranged at a cutting edge of the blade for the high-speed steel shovel drill; the excircle of the blade for the high-speed steel shovel drill is provided with the edge margin; and the chip breaker groove is formed on the front angle surface of the blade for the high-sp