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grader cutting edge comes in a stunning number of configurations and spacing. Standard Highway Punch (3-3-12 spacing) is the most common, but even that has options. Plow blades come with countersunk holes for plow bolts, square punched holes for carriage bolts or round holes to accept hex bolts.

Users and manufacturers have a range of gauge (distance from the top of the blade to the center of the row of holes) specifications as well. 1-1/2” is the most common, but this varies from 1” for some of the smaller pickup truck blades to center drilled on some of the highway plows and wings. Snow plow blades are often clipped, particularly with V-plows. They can be clipped on one or both sides and with one or two clips on each side.