Abstract: A horizontal boring mill and milling device with a tool carrier adjustable as to height on a horizontally displaceable stand and with a tool magazine arranged laterally thereof, in which the tools or set of tools are held parallel to the boring or milling spindle axis. The tool magazine or frame is, for purposes of exchanging heavy tools or set of tools, arranged in front and in the region of movement of the tool carrier, and the tools or set of tools have flange-shaped extensions, or the like, for holding in the tool magazine and on the tool carrier.