Detailed Drawings > Annotating the Drawing > Cleaning Up Dimension and Detail Display > Working with Leader Lines > To Change the Arrowhead Style
  
To Change the Arrowhead Style
1. On the Annotate tab, click Arrow Style. The list of arrow style appears.
2. Select the arrowhead style you want to apply, then click an arrowhead in the drawing.
3. Click OK in the confirmation box. The arrowhead styles are changed.