I'm selling an excellent condition Porter Cable 7428 Circular/Rotary Polisher. I used this for about an 10 hours. Comes with the original 6" firm loop-backing plate (not pictured), as well as a 6 3/4" flexible loop-backing plate (pictured installed.)
The 7428, for all its ruggedness, weighs in at 8 lbs. making it comfortable for long term use. The front loop handle (called a bail handle) is preferred by most operators and can be offset on either the right or left side to accommodate left handed users.
Speed settings:
1 = 1,000 to 1,200 rpm
2 = 1,400 to 1,600 rpm
3 = 1,800 to 2,000 rpm
4 = 2,200 to 2,400 rpm
5 = 2,600 to 2,800 rpm
6 = 3000 rpm
Pictures:
