the present invention provides a circular saw including a housing , a motor within the housing , a circular saw blade rotatably driven by the motor , a base and a bevel angle adjustment mechanism . the bevel angle adjustment mechanism pivotally interconnects the base to the housing such that the circular saw blade is adjustable relative to the base through a range of bevel angles . the bevel angle adjustment mechanism includes a first member carrying a detent and a second member defining a cooperating recess . the detent and the cooperating recess positively define at least one predetermined bevel angle setting .