This video outlines the steps needed to change the template of an existing part to a different part custom template. The reasons for doing this may be: If an existing part has a different set of Document Properties, and Custom Properties than what was intended, this technique may be a quicker method than manually updating each property. Also, if there are issues with a part's features, that seem like possible file corruption, this technique can be used as an attempt to fix the file. I hope you enjoy the video. Please feel free to comment.