A forging stake is a hardened steel tool with a shaped working surface against which sheet metal or wire is hammered during forging, raising, and planishing operations. Mounted in a bench vice or a dedicated stake holder, it functions as a portable, profile-specific anvil, allowing the goldsmith or silversmith to work hollow forms, bangles, bezels, and other three-dimensional structures with a degree of control that a flat anvil alone cannot provide. The variety of available profiles — flat, domed, tapered, conical, and cylindrical — means that a well-equipped bench will hold a family of stakes, each selected for a particular stage of forming work.

Function and Mechanical Principle

The underlying principle of the forging stake is straightforward: when a hammer blow lands on metal resting against a rigid, polished surface, the energy is absorbed by the mass of the stake rather than dissipated into the bench or the smith's hand. This absorption concentrates the deformation precisely where the metal contacts the working surface, giving the craftsperson control over where material moves. The greater the mass of the stake relative to the hammer, the more efficiently energy is transferred into the workpiece rather than lost to vibration. For this reason, professional stakes are made from tool steel — typically hardened and tempered to resist deformation — and are finished to a high polish on their working faces. Any scratch or pit on the stake's surface will be faithfully impressed into the metal being worked, so maintenance of the polished face is considered routine bench discipline.

The stake is not merely passive. Its geometry actively shapes the metal. A convex domed surface will stretch and thin the metal at the point of contact, useful for doming discs or raising the walls of a vessel. A flat surface supports planishing — the final smoothing of hammer marks — without further distortion of the form. A cylindrical mandrel stake allows a strip of metal to be curved evenly around its circumference, essential when forming a ring shank or a bangle.

Common Profiles

The range of forging stake profiles in regular use reflects the diversity of hollow-ware and jewellery-forming tasks encountered at the bench:

• T-stake — The most versatile general-purpose stake, presenting a flat rectangular working surface on a stem that drops into a stake holder or vice. It is used for planishing flat sheet, forming right-angle bends, and supporting bezel work. The rectangular cross-section of the head allows the smith to work close to an edge without the tool obstructing adjacent areas of the piece.
• Raising stake — A conical or horn-shaped stake used in the raising technique, in which flat sheet is progressively worked up into a hollow form by hammering in concentric rings from the outside inward. The curved surface of the raising stake supports the developing wall of the vessel at each stage, preventing collapse and guiding the metal's movement.
• Mandrel stake — A cylindrical or slightly tapered cylindrical stake used to form and true circular forms such as ring shanks, bangles, and tube settings. The metal is wrapped around the mandrel and hammered to close it, then planished to remove hammer marks and achieve a consistent diameter.
• Doming stake — A stake presenting a convex hemispherical surface, used to dome discs of sheet metal into shallow or deep cup forms. Related to the doming block (a block with hemispherical depressions), the doming stake is used in conjunction with a ball-peen or doming punch.
• Bezel stake — A small, often tapered rectangular stake used specifically to support a bezel setting while it is being formed, soldered, or burnished. Its compact geometry allows it to be inserted inside a collet or bezel cup without fouling the surrounding metalwork.

Materials and Construction

Forging stakes are almost universally made from high-carbon or alloy tool steel, hardened to resist deformation under repeated hammer blows and tempered to prevent brittleness. The working face is ground flat or to the required profile, then polished — typically to at least a fine abrasive finish, and ideally to a mirror polish for planishing stakes. The stem or shank is left in a softer condition so that it can be gripped securely in a vice without cracking. Older stakes, particularly those of nineteenth- and early twentieth-century manufacture, were often made from wrought iron with a welded steel face, a construction that combined the toughness of wrought iron with the hardness of steel at the working surface. Contemporary stakes are generally machined from a single grade of tool steel throughout.

The stake holder — a cast-iron or steel block with a square or rectangular socket — is the traditional mounting device, itself clamped in the bench vice. Some jewellers prefer to mount stakes directly in the vice jaws, particularly for smaller stakes where the added height of a holder is unnecessary. In either case, the stake must be held rigidly; any movement under the hammer wastes energy and reduces control.

Use in Jewellery Making

In jewellery making specifically, forging stakes are employed at several stages of fabrication. During initial forming, a T-stake or raising stake supports the metal as it is bent, curved, or raised from flat sheet. During fitting and assembly, a bezel stake or mandrel stake holds components in position while they are adjusted. During finishing, a planishing stake — typically a highly polished flat or slightly convex surface — is used with a planishing hammer to remove the texture left by forming hammers and to work-harden the surface of the metal, improving its resistance to denting in wear.

The raising of hollow forms — bowls, lockets, hollow pendants, and similar pieces — is among the most demanding applications of the forging stake. The technique requires the smith to move metal progressively and evenly, working in controlled passes around the circumference of the piece, and the geometry of the raising stake must be matched carefully to the stage of the work. Too acute a curve on the stake at an early stage will corrugate the metal; too flat a surface at a later stage will fail to support the developing form. Experienced smiths accumulate a range of stakes precisely because no single profile serves every stage of a complex raising sequence.

Care and Maintenance

The polished working surfaces of forging stakes require regular attention. After use, stakes should be wiped clean of flux residue, pickle contamination, and metal particles, all of which can pit or stain the surface. Any scratches that develop on the working face should be removed by careful polishing through successive abrasive grades, finishing with a buffing compound. Stakes should be stored in a dry environment or lightly oiled to prevent rust, which will mark soft metals such as fine silver or gold on contact. A pitted or corroded stake face is considered a defect that will compromise the quality of any work produced against it.

Historical Context

The use of shaped anvil tools to support metalwork during forming is ancient, with archaeological evidence of stake-like iron and bronze tools from smithing contexts across the ancient Mediterranean and Near East. The vocabulary of stakes — T-stake, raising stake, mandrel — was codified in the European goldsmithing and silversmithing traditions of the early modern period and remains largely unchanged in contemporary bench practice. The tools themselves have changed in material and manufacturing precision, but their profiles and functions reflect an accumulated understanding of how sheet metal moves under the hammer that has been refined over centuries of craft practice.