|Review by GeneR||posted 01-12-2014 05:51 PM||6101 views||2 times favorited||22 comments|
- Porter-Cable 390K 5" Low Profile Random Orbit Sander
- Brand: Porter-Cable | Category: Sanders
First off I have used many, many different sanders before this purchase. I bought this sander to replace a porter cable 1/4 sheet finishing sander that finally gave out after many years of reliable use.
I looked at several random orbital sanders that were comparable including the Dewalt version which is more of a finishing sander where this is an all around work horse.
The most notable difference between this and other ROS’s is the fact this is very quiet compared to Dewalt, Black and decker or even previous porter cable sanders. This particular unit also has greatly reduced vibration.
If you are not aware this ROS has a unique braking feature that slows down and stops the pad when you turn it off. This is so you can fairly quickly set it down without the worry of damaging whatever you set it on due to the disc still spinning on other units.
Another incredible feature is the built in dust vacuum system. when you are sanding you can actually hear the dust being sucked up into the bag as if a shopvac was attached to the unit, thus creating very little dust in the air. I have not yet had the opportunity to connect my shop vac to it but I am sure I will be very impressed.
Note: The dust extraction definitely works better with 8 hole paper being properly lined then the Freud brand sanding discs with small universal holes.
The sand paper disc I used were by Klingspore and I highly recommend this brand very good quality paper and less expensive with a wider variety of grits then most store bought paper. I found it on ebay up to 1500 grit.
Back to the sander.
The variable speed is nice for various wood densities and also for controlling the amount of material you take off, whether you want aggressive sanding to remove a large bulk or slowed down for a little fines in smoothing.
Note: This will also be based on the quality and grit of the sand paper you use.
I did have a hard time justifying the $109.00 price tag which I got on sale at Home Depot online for $99.00 plus tax and free shipping. But after using it on my opinion is that is worth every little penny I paid for it.
This unit also came with a very nice hard plastic case for storage.
In conclusion do not waste your money on other cheaper brands or units, suck it up spend the money and you will not be disappointed.
-- Failure is always an option. :-)