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Broached / Droved / Batting

- a tooling on the face of masonry which both levels off the surface of the stone, and provides a decorative effect, most often found on door or margins margins, sometimes on ashlar work, broaching consists of parallel grooves which run virtually the full length of the stone, cut with a sharp chisel (a pinch), or the sharp edge of a wider chisel, (a bolster). These are usually horizontal but sometimes vertical and nearly always come with a margin draft.
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Droved (droving) is also a tooling process, where the grooves are cut with a bolster to form a series of lines which are the length of the blade (35-50mm) only. Droving is more usually vertical and tends to be finer than broaching. Droving has been referred to as a process where the stone is "tooled clean after being broached".

Batting is more of a generic term referring to any tooling of stonework which leaves a series of regular cuts.