Gear forming on milling machines (and shapers) has the following characteristics: Advantages:General purpose equipment and machines are used.Comparatively simple setup is needed.Simple and cheap cutting tools are used.It is suitable for piece and small size production. Drawbacks:It is an inaccurate process due to profile deviations and indexing errors.Low production capacity due to the idle time loss in indexing, approaching, and withdrawalof the tool. However, productivity can be enhanced by multi-WP setup. Vikrant Sharma, FET. MITS Manufacturing Technology