I had a tiller attachment for my 31cc Ryobi Lawn Hornet I found in a rubbish skip at the rear of a mower shop years ago and it had no trouble ploughing through hard soil. Wish I still had it. I noticed the gearing was very low, giving it plenty of torque to handle the task.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!