Brass Thumb Planer Set, 8 to 18mm, Curved Sole

The curved belly of a violin or viola needs a plane small enough to fit inside a tight arch, somewhere a standard bench plane cannot reach. This thumb planer is built for exactly that job, available across five sole widths, 8mm, 12mm, 14mm, 16mm, and 18mm, plus a bundled 5-piece set that covers all five at once. Pick the single size that matches your instrument's curve, or take the full set and cover front, back, left and right passes on the same project. The body is brass, polished to a high gloss, paired with a sharp steel blade that a luthier can pull through wood with light, controlled strokes. A single 8mm planer weighs just 44 grams; the full 5-piece set comes to 357 grams. Every size ships in the same 200 by 150 by 150mm box. This tool suits tight, detailed carving work. It will not flatten a broad panel, so keep a standard bench plane on hand for the bigger surfaces.