The ripper tooth is a hook-shaped tooth that attaches in place of the backhoe bucket and is used most to tear through roots and to tease out buried rocks. The resulting hole require less backfilling than a bucket, though if the roots are buried more than 10 or 12 inches deep you would need a bucket to remove the soil before using the ripper.
The ripper tooth is made and sold by Bro-Tek. It takes 5 minutes or fewer to attach. The process being summarized as: - Remove 2 bolts; pull the pins; swap the ripper and bucket; replace pins and bolts.