TurningMillingDrillingTechnicalInformationIndex Technical information Technical information – turning A ThreadingSteps for best results when thread-cutting 1. Choice of threading method 2. Choice of angle and shim 3. Choice of tool holder and inserts 4. Choice of cutting data 5. Choice of cutting direction Thread turning method External machining B Right hand type Left hand type Internal machining C Right hand type Left hand type D E A 456