Specifications include, but are not limited to: 5/8" x 8" x 10 foot through hardened snow plow blades, 12 hole, 350 each; 5/8" x 8" x 11 foot through hardened snow plow blades, 13 hole, 200 each; It is the intent of the City of Omaha to purchase Hardened steel snow plow blades for front mounted truck plows. The blades must meet a minimum hardness specification of Rc43 (BR400). The blades will need to be standard highway edge punched and will be attached by using 5/8” #3 plow bolts. The blade manufacturer shall furnish a certificate of test report showing the actual Brinell or Rockwell Hardness of the blades being quoted. Blades bid must be FLAT in design and may be of the straight edge, single bevel or double bevel edge type. Cutting edges are to be bundled 10 blades per bundle.