Models EA3501S are developed based on models of DCS3201S. The engine displacement of these new chainsaws are increased to 35cm³ (2.1cu.in.) with increasing stroke length. Their other benefits are the same as their sister models and include: environmentally friendly 2-stroke engine with catalytic muffler to comply with well known exhaust emission regulations and a compact and lightweight body for better handling. Model EA3501S has a Tool-less tension adjustment for saw chain