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The Complete Handbook of Masonry Edgers & Groovers
Essential Knowledge for Masons, Contractors, and Serious DIYers
by Alumigogo Books
Chapter 1: Understanding Masonry Edgers & Groovers
A masonry edger is a hand tool—or sometimes a power attachment—that shapes and refines the edges of concrete and masonry work as the material sets. A groover is a similar tool that cuts or imprints control joints and decorative lines into the surface. Together, they are among the most frequently used finishing tools on any concrete or masonry job, and yet they are often the least understood.
Most professionals know they need an edger or groover because the job specifications call for one, or because rough edges and uncontrolled cracks look unfinished. Fewer understand how these tools actually work, which types suit which conditions, or why a tool that works perfectly on one pour fails on another. The result is wasted time, damage to fresh material, poorly finished edges, and cost overruns—all from a tool that costs $15 to $150 and takes thirty seconds to learn to hold.
This chapter establishes what masonry edgers and groovers are, how they function in the context of a concrete or masonry finishing job, and why the choice of tool and technique matters directly to the quality and profitability of your work.
What Masonry Edgers and Groovers Actually Do
On a concrete flatwork job—a sidewalk, driveway, or interior floor—the edges where the concrete meets the formwork or the adjacent surface are typically left rough and sharp from the casting process. An edger is dragged along that edge while the concrete is still plastic, rounding or beveling it