Planisher
Planisher
The smooth-faced punch or hammer that compresses raised metal to a refined surface
A planisher is a smooth-faced punch or hammer used in chasing, repoussé, and the broader hollow-ware silversmithing tradition to flatten and refine raised metal surfaces after the forming work has been completed. The planisher's faces — typically broad and slightly domed, sometimes flat — compress the metal under controlled blows, removing the marks left by the forming tools, work-hardening the surface, and producing the smooth, even finish that distinguishes well-finished hand-raised work. The tool's apparent simplicity disguises a level of finesse: planishing is one of the operations on which the surface quality of the finished piece most depends.
Form and variants
Planishers exist in two principal formats: the planishing hammer, which is held in the hand and struck against the workpiece directly, and the planishing punch, which is held against the workpiece while struck with a separate striking hammer. The hammer format is preferred for general silversmithing work where the workpiece is mounted on an anvil or sandbag and the planisher's face can be brought to bear directly. The punch format is preferred for repoussé and chasing work where the workpiece is mounted in pitch and the planisher must reach into recessed areas that a hammer's handle would not permit.
The faces of planishers are characterised by their geometry. A flat-faced planisher leaves a uniform compressed surface; a slightly domed face produces a subtle faceted texture that catches light differently as the workpiece is rotated; a more strongly domed face produces a more pronounced texture associated with the deliberately hammered surfaces of certain Arts and Crafts and Mission-period silversmithing. Specialist planishers may have specifically shaped faces — concave, convex, oblong, or asymmetric — for particular geometries of workpiece.
The faces of well-made planishers are highly polished. Any irregularity, tool mark, or pit in the planisher's face will be transferred to the workpiece on each blow, producing a defect that subsequent operations may not be able to remove. Maintaining the polish of a planisher's face is therefore a routine part of workshop housekeeping, with re-polishing typically performed when the face's mirror finish has degraded sufficiently to be visible on the work.
The planishing operation
Planishing is performed after the major forming work — raising, sinking, repoussé, or chasing — has produced the workpiece's overall geometry. The workpiece is mounted on a stake, anvil, or pitch bowl appropriate to its shape and size, and the planisher is brought to bear with controlled, overlapping blows that walk progressively across the surface. Each blow compresses a small region of the metal slightly, smoothing it and bringing it into closer alignment with the workpiece's intended geometry.
Successful planishing requires consistent striking force, careful control of the planisher's angle of impact, and overlap of successive blows so that no region of the surface is left unworked. An experienced silversmith planishes with a rhythm that places blows at controlled intervals, working systematically across the surface from a defined starting point to a defined endpoint. The cumulative effect is the transformation of the workpiece's surface from the rough state left by the forming tools to the refined state that the next operation — typically polishing or surface-decoration work — requires.
The pace and intensity of planishing varies with the metal and the intended finish. Sterling silver and high-karat gold respond well to firm but controlled strokes; copper and brass are more forgiving and can absorb heavier strokes; thin sheet stock requires lighter strokes to avoid stretching or distortion. The planisher's weight is matched to the application, with smaller jewellery planishers in the 100-to-200-gram range and silversmithing planishers up to 500 grams or more.
Surface effects
Planishing has two principal surface effects: it removes the irregularities left by the forming tools, producing a smoother surface; and it work-hardens the metal, increasing its hardness and stiffness as a result of the deformation each blow imposes. The work-hardening is essential to the structural integrity of hollow-ware, where the planished surface contributes to the rigidity that allows a thin-walled bowl, vase, or similar form to resist deformation in use. Repeated annealing during the forming sequence keeps the metal workable; planishing at the end of the sequence locks in the final hardness.
The light-reflective character of a planished surface differs subtly from that of a polished surface. Where polishing produces a uniform mirror reflection, planishing — particularly with a slightly domed face — produces a surface of overlapping minute facets that scatter light in a pattern characteristic of the planisher's face geometry. This characteristic surface is often desirable in its own right and is preserved as the final finish in much contemporary silversmithing and Arts and Crafts revival work, rather than being polished away.
Provenance and care of planishers
Antique planishers — those carrying maker's marks of nineteenth- and early-twentieth-century English, German, and American toolmakers — remain in working use in many silversmithing studios. The forged tool steel of the period is well-suited to the application and, properly maintained, the older tools outlast their cheaper modern counterparts by decades. The trade in vintage silversmithing tools, including planishers from named makers such as Peddinghaus, Fretz, and the older English manufacturers, is a recognisable secondary market with prices that reflect the working desirability of the tools as well as their age.
Care of a working planisher is straightforward. The face is kept polished and free of pitting; the hammer's handle is replaced when worn or damaged, with traditional ash, hickory, or carpinus handles preferred over modern composite alternatives for their feel and durability; and the tool is stored in a position that protects the face from contact with other metal surfaces. With this routine maintenance, a planisher remains in service for the working life of its owner and beyond.
In the trade
The planisher is a fundamental tool in any silversmithing or hand-raised hollow-ware workshop, and a competent silversmith maintains a working selection of planishers in different face geometries and weights. For jewellery work, the planisher is a less central tool than in silversmithing — much fine jewellery work uses casting or sheet-fabricated construction that does not require the planishing operation — but is essential in the smaller subset of jewellery work that involves hand-raised forms or chased surfaces. Modern training programmes at the Goldsmiths' Centre, the major American craft schools, and similar institutions teach planishing as part of foundational silversmithing curricula, and competent planishing technique is among the marks of a properly trained smith. The economic context in which planishing remains relevant — the niches of bespoke silversmithing, ecclesiastical commissions, and high-end studio jewellery — values the visible signs of hand technique as authentication of the maker's work, and the planished surface is one of the principal such signs.