Mark and Initiate the Circular Paver Cut

What happens here

The process begins with an established circular guideline on the pavers (as implied by the narrator stating, "These guys draw a line all the way around"). Although the marking isn't explicitly shown, it's a crucial preparatory step, potentially done with a chalk line or construction marker. A worker then uses a gas-powered cut-off saw, equipped with a diamond blade, to initiate the cut along this circular line. The narrator specifically points out, "He cuts a notch in it to mark it," indicating an initial, likely shallow, pass designed to create a precise groove. This scoring cut serves as a guide, ensuring accuracy and control for subsequent deeper cuts and preventing the blade from wandering.

Goal: Establish a precise, guiding cut for the circular paver edge.