3/4" hex bore. For driveline shafts and transmission on Massey Ferguson 8000, 9000, PA, VE series; White 5100, 5700, 6000, 8000, 9000 (except 6200, 6300 Rear Fold) series planters. For seed and fertilizer transmission on Deutz-Allis 385; Landoll 4400 planters.
For Landoll late model Weatherproofer rippers with wear strip on front side of shank (except 2211, 2410, 2430); Farmhand-Glencoe Yield Builder DR8500, DR8700, DT8400 with curved parabolic shanks.