The only dual action polisher I used for years was the Porter Cable 7424. It worked and continues to work we to this day. I have both the first and second generation Porter Cable 7424 polishers and enjoy using them both.
I believe I've had my Flex 3401 for 2 years now and the first time I switched it on I was amazed at how smooth and comfortable using it was.
The Flex 3401 is an incredible breakthrough in the next generation dual action polisher. It's forced rotation allow the user to vary the pressure without monitoring the pads rotation. Because of it's power and design, correction times are less and much faster, probably 30% to 40% faster than with the Porter Cable 7424...
i have them both and have never had a problem with any flex. done a couple hundred cars with a 3401. bulletproof. only got a rupes cause i am a tool #####. like it too for different reasons.
Just used my Flex on a 4Runner hood this morning and its easy to control, maybe i've got used to using my makita a lot that controlling this made it a breeze. Very smooth machine and less noisy too. Love it!
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