Trencher, Crommelins Grounhog T4, with Robin/Subaru 6HP petrol engine, manual pull start, walk behind, digs a 3 inch wide trench, 3 depth settings 8 inch or 12 inch or 18 inch, tungsten tipped teeth on the chain, Donaldson air cleaner, weight 110 Kg, compact unit , starts and runs well.