Wall chaser for push and pull cutting fr electronic control with tachogenerator constant speed control soft start overload protection and temperature monitoring patented swivel mounted motor ep1693169 allows for push and pull cutting optimal dust extraction and maximum safety due to enclosed guard tool free blade changing and slit width adjustment rotating adaptor for dust extractor tool free cutting depth adjustment plunge cut stop chases two parallel slots up to 35 mm deep and 30 mm wide slot