The Handy THPCS18 is driven by a powerful 46cc 2-stroke engine which uses an unleaded petrol & 2-stroke oil mix. Both the 18 inch guide bar & chain are made by Oregon who are the worlds leading manufacturer of saw chains & guide bars. Oregon saw chains are favoured by commercial users who look for quality & reliability.A petrol saw this size would be suitable for large tree & log work or for cutting up railway sleepers for the garden. Specifications Model: THPCS18 Engine: 46cc Starter: Recoil with ' Soft Start' Cutter Bar Length: 18" Safety Chain Brake Automatic Oil Pump Diaphragm carburettor Electronic ignition Weight: 9kg Manufacturer's 12 month warranty