Stretching wood, breaking or snapping wood, stress relief, cutting and slicing (machines for cutting up wood by knife action without following the grain).

This group is for the classification of woodworking techniques/treatments/machines not already provided for in subclasses B27B - B27L.

Mechanical surface treatment including cutting or shaping particularly of plural discrete diverse cutting operations, the operations including slicing, slitting, chipping, planing sanding etc. Particularly for producing an aged or antique look to the worked surface.

Machines for preparatory processing by incisions in wood prior to impregnation, includes log punching (machines intended to pierce radially through a log).

Shaping by applying pressure.

Machines including a cutter for cutting out pieces or simply cutting holes by mere punching action.

Processes including applying heat to the tool or wooden part.

Machines for carrying out a number of different machining steps, usually taking place in sequence along a workpiece or machine tool transfer direction.

Machines including a first structure for performing an operation of this class on a workpiece and including a second structure for performing a second, distinct, operation on the same or a second workpiece.

The manufacture of assembled wooden elements (side by side, end to end or both, corner jointing etc.) Products per se are in the product groups where they exist.

The manufacture of assembled wooden elements to form furniture, doors, window frames, blinds, sills or drawers. Furniture or frame presses (frame presses also in B27M 3/0013). Products per se are in the product groups.

For the classification of doors, B27D 5/003 takes precedence.