Specifications include, but are not limited to: The difference between the highest and lowest tip point should not exceed 1/32 inch on any given blade assembly.; The finished blade section shall be free of warpage and longitudinal deviation should not exceed 1/8 inch in a four-foot blade section.; Each blade section shall be identified with manufacturer's identification stamp on each end.; The finished blade sections shall have markings showing the front edge of the blade to avoid improper mounting.; All carbide blades should be standard sections with 12 inch hole centers, 1 1/2 inches from the top of the blade.; The blade shall be flat hot-rolled finished steel, to meet or exceed specifications for A36 or 1020 type steels. (Dane County has typically used 3/4” thick blades); Punching shall be 11/16 inch square holes with counter sink to receive 5/8 inch diameter plow bolts using the AASHTO punch pattern, 1 1/2 inches from the top of the blade.; The groove for the carbide inserts shall be milled in the center of the blade edge.;
