Abstract: A pick box (1) of a tooling system for mineral winning etc., has an elongated aperture (4) to receive, in use, a removable liner sleeve (6) of the tooling system, the box (1) providing a seating surface (7) extending orthogonally with respect to the axis (5) of the aperture (4). The external periphery of the sleeve (6) and the internal periphery (8) of the box aperture (4) are so profiled, e.g. hexagonally, as to prevent relative rotation and the internal periphery of the box aperture is interrupted at (11) to provide at least one surface for engagement, in use, with a retainer device (12) of an inserted sleeve (6), whilst the sleeve has an external groove (22) to receive a retainer device (12). The invention also includes a sleeve (6) having an enlarged head (16), a longitudinal circular bore (26), and a circumferential groove (22) fitted with a retainer ring (12). The invention further includes a box (1) and a sleeve (6) in combination, and a drum (3).