The dewalt dws777 216mm xps crosscut mitre saw has been fully upgraded from the previous model it includes xps shadow line cut technology for accurate alignment and a dewalt airlock compatible dust port it has a traditional pull and tilt design the fence and base have been re engineered to new standards making this saw more accurate and heavy duty theres a new head lock feature which enables users to fix the head of the saw and therefore restrict the traverse perfect for trimming and groove cutt