For a pro look, you might want to equip yourself with a curb trowel from Amazon or your local hardware. Alternatively, you can install concrete edging stones, such as these overlapping Bullet ...

trowel at the 2020 World of Concrete in Las ... a retardant spray system, arm rests, and an edging kit that enables the LD6 to finish closely against walls. Each accessory kit is designed for ...