Cutting set concrete requires specialized tools like circular concrete saws and groove cutting machines. These tools are essential in construction for tasks like creating joints, adding drains, or installing electric chases. Circular saws offer precision in cutting tough concrete surfaces for various purposes, from expansion joints to repairing pavement. Groove cutting machines are specifically designed for hard concrete, ensuring accurate modifications in construction projects, including expansion joints and pavement repairs. Both tools are vital for altering and shaping concrete structures with efficiency and precision.