The tool used to produce a rounded edge on a slab to prevent chipping is a?

The tool used to produce a rounded edge on a concrete slab to prevent chipping is the edger. An edger is specifically designed to create a smooth, rounded finish on the edges of a concrete slab, which not only enhances the appearance but also helps prevent damage to the edges during the curing process and subsequent handling. This is crucial in concrete work, as sharp edges can easily chip or crack over time.

The other tools serve different purposes in the finishing process. A screed is used to level and smooth the surface of freshly poured concrete, ensuring an even thickness across the slab. A broom is typically used for texturing the surface of the concrete to improve slip resistance. A trowel is mainly used to smooth and finish the surface of the concrete after it has been screeded, but it does not create the rounded edge that an edger does. Each of these tools plays an important role in concrete work, but the edger is the tool specifically designed for rounding the edges of a slab to prevent chipping.