inletting

Inletting is the process of creating a precisely shaped recess in a wooden surface to receive a component so that it sits flush with the surrounding material. It is commonly used in firearm stock work to fit the receiver, barrel channel, and other hardware, and it is also employed in woodworking to conceal hinges, plates, or decorative elements.

The procedure begins with marking the component outline on the stock and then removing waste wood to form a rough cavity. Tools such as chisels, gouges, knives, rasps, and, when appropriate, routers or drill bits, are used. The part is repeatedly tested in the inlet; adjustments are made by removing small amounts of wood until the edge of the component sits square and the surfaces align to the required plane.

Final finishes require careful smoothing of the cavity walls with scrapers or fine files and light sanding. In firearm work the inlet must be accurate to allow proper bedding and alignment of the action, and it is often followed by bedding compounds or shims to secure the component.

Key considerations include grain direction to minimize tear-out, wood moisture content, depth control, and the alignment of screw holes and mating surfaces. Common problems include gaps around edges, binding, or misalignment, which are usually addressed by careful re-cutting and re-fitting. Proper technique preserves wood strength and ensures a stable, accurate assembly.