This listing is for six Heat Treated Replacement Scarifier Point for a Box Blade Shank. Universal fit replacement point for most 3/4" thick box blade shanks. Can be crimp or welded into place. Made of heat treated HRC 38-42 steel you can use this box blade shank to help break up the hard packed dirt to make it easier to till when preparing your soil for farming. Specifications Ripper Point for Box Blade Shank Heat treated HRC 38-42 Length at bottom: 5 in. Width at bottom: 1-3/4 in. Boot is 7/8 in. x 5/8 in. at shank attachment Depth of boot: 3 in. Height of boot opening: 2 in.