Vevor 18'' Box Blade Shank Scarifier Shanks Teeth 4 Holes Box Scraper Shank 4pcsComplete Assembly4 Adjustable HolesSteel StructureRemovable ToothEasy DiggingWidely UsedShank Size: 18'' x 8''/464 x 209 mm,Tooth Size: 4'' x 2''/107 x 50 mm,Hole Interval: 1-1/2''/40 mm,Pin Diameter: 8/17''/12 mm,Material: Carbon Steel,Hole Diameter: 1/2''/15 mm