17-1/2" dia., .177" thick, 1" wide, 4" center pilot hole. 4 hole pattern with 5-1/4" bolt circle. For Case-IH 5400, Great Plains drills; John Deere 1570 coulter cart; Ausherman, Great Plains, Yetter no-till coulters attachments.
For Ausherman, Great Plains no-till, fertilizer coulter attachments; Great Plains planter, drill frame mounted single-arm no-till and fertilizer coulter; Brillion Compaction Commander, early Zone Commander®, inline rippers 4-bolt fluted coulter.
15" dia. Includes dust cover. Leading blade for Crustbuster Min-Till 4000, 4020, 4025, 4030, 4740, 4745, 5020. Leading or trailing blade for Min-Till 5007, 5010, 5015, 5527, 5530, 5536 drills.