Create a pointed or frustum of a cone with a circular or elliptical base.

By default, the base of the cone lies on the XY plane of the current UCS. The height of the cone is parallel to the Z axis.
Show Me: Create and Modify
a ConeUse the following options to control the size and rotation of the cones you create:

The Frustum tool is also available from the Modeling tab of the tool palette. You can also use grips to modify the tip of a cone and convert it to a flat face.