Petrol Fence Post Driver Jack Hammer Star Picket Dropper Jackhammer Farm Fencing. Petrol Star Post Picket Driver & Demolition Jack Hammer. High Performance 35cc 2 Stroke Engine. The ultimate Multi-application tool. Brand New 2018 Design with reduced weight, only 10.5kg. Powerful 35cc 2 Stroke Engine for simplicity and light weight. Vertical Shaft Engine – Crankshaft …