Abstract: The four sides of a batten are thicknessed and surfaced using a machine unit with a succession of tools driven by one motor and rotating horizontally throughout: a bottom planing tool incorporating a first trimming cutter at one end, a first surfacing cutter aligned with the first trimming cutter, a top planing tool incorporating a relative trimming cutter at the opposite end to that associated with the bottom planer, and a second surfacing cutter aligned with the trimming cutter of the top planing tool.

Abstract: The tool assembly is intended for woodworking machines having an integral spindle drive with electric motor and rotary tool holder combined in a one-piece unit; use is made of a tubular sleeve to accommodate the spindle drive, which is mounted coaxially at one end with the tool and holder projecting, and supported by a set of radial webs alternated with a similar number of openings and bridging a gap created between the motor and the sleeve, given that the transverse dimensions of the spindle unit are less than the bore of the sleeve. The sleeve connects at the top end with the duct of an extractor system and is carried slidably in relative supports, capable of controlled traversing movement along its own longitudinal axis.