Pasture Renovator has heavy 4" square tube frame Each shank is shear bolt protected 17" flutted coulters, 3/4" U-Bolts on coulter clamp New clamp on design 1" U-Bolts on shank clamp ARM3, ARM4, ARM5, ARM6 Available in Category I & II - 3-point Hitch (Clevis Type), Cat. I & II - Quick Hitch Compatible ARM8, ARM10, & ARM12 - Available in Category II & III, 3 Pt. Hitch (Clevis Type)10HP - 15 HP per Shank