What is the bit where a square section merges into a round section called? I can't for the life of me remember at the moment. 
Next question will be: How do I draw one in SketchUp, but I may be able to find that out once I know what it's called.
Next question will be: How do I draw one in SketchUp, but I may be able to find that out once I know what it's called.
