Tutorial - Using Combine feature to create part in SolidWorks?

Here is the tutorial.
Step 1:
Start SolidWorks.
Step 2:
Front Plane>>Sketch.
Step 3:
Draw the front view.
Step 4:
Exit the sketch. Top plane>>Sketch.
Step 5:
Sketch the top view.
Step 6:
Exit the sketch. Right Plane>>Sketch.
Step 7:
Sketch the right view.
Step 8:
Exit the sketch.
Step 9:
Extrude all sketches without merging the result.
Step 10:
Insert>>Feature>>Combine.
Step 11:
Operation Type=Combine. Select all bodies and click OK.
Step 12:
We have the part body.
Step 13:
Simple cut operation.
Step 14:
Top plane>>Sketch and draw two circles.
Step 15:
Extrude cut with Through all. Click OK
Step 16:
We have the part body. If we have sketched the holes in top view we would have the holes created too.
Thank You Sir, no one have show me like this result thank You. :)