Oh, you said "blade" in your post. You mean the a frame mount. No it is also 3/16" square tubing with grade 8 mounting hardware. Unisteer just came out with their hydraulic plow and as far as I am concerned with what I have seen, is a knock off of this Blackline plow. Believe me it is well engineered and built. When I was blading the gravel with it, there was an un-seen piece of poured concrete in the middle of the drive that I hit with the right edge at about 5 mph and almost stopped me in my tracks, didn't phased it.