With extra-tough blades manufactured from 3mm-thick, Swedish Hardox® steel, the 'Stay Sharp' cartridge is suitable for scarifying jobs too demanding for the other cartridges.
These blades are the thickest and strongest we supply. They are free-swinging and made from 3mm thick Hardox® with a pointed tip so they will tackle the toughest conditions and keep sharp for longer. The blades are mounted on 3 rods separated with spacers and each rod layout is alternating to provide maximum coverage.