Specifications include, but are not limited to: ABRASION RESISTANT STEEL CUTTING EDGE; shall be at least C-1084 Steel.Section--Snow Plow; reversible for double wear, 5/8” diameterholes shall be punched 12” on-center 11’ Edge @5/8" x 8"21 days$ /11’ sectionSection--Snow Plow Edges 5/8” diameter holes shall be punched 12” on-center and1-1/2”from top edge to center of hole 13’ Edge @5/8" x 6"21 days$ /13’ section5/8” diameter holes shall be punched 12” on-center and1-1/2”from top edge to center of hole 11’ Edge @5/8" x 6"21 days$ /11’ section5/8” diameter holes shall be punched 12” on-centerand2" from top edge to center of hole 11’ Edge @5/8" x 6"21 days$ /11’ sectionSection--Grader;double bevel curved 5/8" x 6"21 days$ /11’ sectionSNOW PLOW EDGESMeyers BBMPIPBOU29 5/8" x 6" x 8’21 days$ /8’ sectionFisher3507 10' Edge21 days$ /10’ sectionWestern 58818 -13" Center Hole Punch 8' Edge21 days$ /8’ sectionHARDENED CUTTING EDGES;Rockwell C hardness range 57-67 on wear portion of blade. Minimum C-1074 steel. Minimum chemical composition specifications: Carbon 0.70-0.80; Manganese 0.50-0.90; Sulfur 0.05 max.; Phosphorus 0.05 max.;Silicone 0.03 max.Section--Snow Plow5/8” diameter holes shall be punched 12” on-center3/4" x 8"21 days$ /ft.5/8” diameter holes shall be punched 12” on-center1" x 8"21 days$ /ft.Section--Snow Plow Edges 5/8” diameter holes shall be punched 12” on-centerand1-1/2" from top edge to center of hole 3/4" x 6"21 days$ /ft.5/8” diameter holes shall be punched 12” on-centerand2" from top edge to center of hole 3/4" x 6"21 days