This is a petrol chainsaw model MT6500 produced by EFCO. It features: 3 year warranty including engine; Designed for heavy-duty use in the most testing environmental conditions; Produced after extensive consultation with forestry professionals; Seriously powerful 4.7hp / 63.4cc two-stroke engine; Convenient combined choke / start / stop control; Decompression valve for low-effort pull-starts; Oversized air-filter for successful operation in dusty conditions; Two-ring piston and aluminium crankcase deliver impressive durability; Advanced anti-vibration system for comfortable day-long operation; Side chain-tensioning ensures no contact with the chain when making adjustments; Automatic chain-oiling for a smooth, clean cut and enhanced longevity.