Do I also need to renew the chisel holder?

If the Greenteeth™ chisel has gone blunt all around, it can be sharpened. After that, only the Greenteeth™ chisel needs to be replaced and not the Greenteeth™ chisel holder! The holder has to endure less wear and tear from wood, sand and earth, and therefore has a longer service life than the chisels. The holders can be mounted on the right or left side of the disc.