New double beveled, hardened, scrapergrader edges for your Siems or other brand box scraper. 12 x 6 FLAT double beveled edge. When one edge wears out, just flip it over for a fresh one. I have 8 ft. $400, 10 ft. $500, or 12 ft. long $600 edges. 2 holes in from each end at 3 and 6 then in every 12 from there. Call or email for prices. 58 Plow bolts with washer and nut are also available for attachment, if you need them.