On the ribbon, click Home > Feature > More > Mirror Feature .
Click on the threaded hole on the part geometry.
On the Mirror Feature dialog, expand the Settings section and check the
Maintain Thread Handedness option.
Under the Mirror Plane section, click Select Plane , and then click on the
YZ plane. Click OK to complete the mirror feature.
Draw a sketch on the front face of the pat geometry and create a Cutout
throughout the geometry.