Abstract: A cutting tool holding apparatus (10), including in combination a cutting tool holder (14); a retainer (18) adapted to be positioned adjacent to the tool holder (14), the retainer including an aperture (18c), a base (16) including an aperture (16c) linked to the retainer aperture (18c), the base (16) adapted to support the holder (14) and the retainer (18), and a fastener (20) adapted to be inserted through the linked apertures, wherein securing the fastener in the linked apertures wedges the holder, retainer and base together and wherein at least two components of the tool holder, retainer and base contact via mating curved faces.