Caterpillar-style bolt-on center cutting edge for a D8 Caterpillar Bulldozer is a double-beveled reversible bucket cutting edge measuring 1.375 inches (35 mm) thick, 13 inches (330 mm) wide, and 53.25 inches (1353 mm) long, requiring 9 plow bolts sized 1 x 3 1/4 inches (25.4 mm x 82.55 mm) and 9 hex nuts sized 1 inch (25.4 mm); the bolt hole spacing is 6 inches (152.4 mm) center-to-center, and 2.63 inches (66.8 mm) from the edge of the cutting edge to the center of the first hole.