Sheetmetal > Designing in Sheetmetal Design > Using Forms > To Use a Sketch to Create a Piercing
  
To Use a Sketch to Create a Piercing
1. Click Model > Form > Sketched Form. The Sketched Form tab opens.
2. Click .
3. Select a sketch or click Placement > Define to create a sketch.
4. In the box, type a value for the depth of the piercing, or accept the default value. Valid values are from 0 to the value of the thickness of the sheet metal wall.
5. To flip the piercing direction, click .
6. To define edges of the piercing to round, perform the following operations:
a. Click Options. The Options tab opens.
b. To round sharp edges of the piercing, click the Nonplacement edges and the Placement edges check boxes and set the value of the radius.
7. Click .