Method for producing a blank from extrusion material, and extruder

Method for producing a cutting head

Blank and tool with cooling channels

METHOD AND DEVICE FOR PRODUCING LONGITUDINAL COMPONENTS OF METAL WITH HELICAL GROOVES, IN PARTICULAR SPIRAL DRILL BITS OR SCREWS

Cutting tool and a process for making such a cutting tool

Rotatable tool and a blank

Method and device for manufacturing a drill blank or a mill blank

Coiled cooling channels

Method and apparatus for producing mounting member of rotary cleaning member

Extrusion press tool for producing a cylindrical body consisting of a plastic mass

Method and apparatus for manufacturing a blank for a rotary cutting tool