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Model # 3725DEVS

Internet # 100609365

5 in. Electronic Variable Speed Random Orbit Sander

This item has been discontinued.
The Home Depot no longer carries this specific product.

$139.00 /each



Model # 3725DEVS

Internet # 100609365

This Bosch 5 in. Electronic Variable Speed Random Orbit Sander/Polisher is a multi-purpose sander with pad that both orbits and rotates, duplicating natural hand sanding and delivering a smooth, well-blended surface finish. The powerful 3.3 amp motor delivers 4500-12,000 OPM. You'll get fast, smooth results on a variety of surfaces with this sander/polisher.

  • High-performance microcellular backing pad that conforms to contours and provides a fine finish
  • Integral pad-dampening system that helps prevent swirl marks for a consistent, fine finish
  • Uses 8-hole 5 in. hook and loop discs that are compatible with industry standard discs
  • Variable-speed dial that allows you to match the speed to your workpiece and task
  • 10 ft. cord for long reach and easy use
  • UL listed
  • 1-year manufacturer warranty
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Product Depth (in.) 
15 in 
Product Height (in.) 
6.6 in 
Product Width (in.) 
7.9 in 
Amperage (amps) 
Case Included 
Color Family 
Cord Length (ft.) 
Corded Tool Type 
Disc Sander 
Dust collection type 
Maximum Speed (rpm) 
Power Tool Product Type 
Product Weight (lb.) 
6.29 lb 
Random orbit 
Tools Product Type 
Power Tool 
Variable Speed 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
Manufacturer Warranty 
1 Year 


Rated 4.6 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by comfortable and quiet nice size and weight, quieter than others i’ve owned and has a comfortable grip. easy to keep flat on the work surface doesn’t grab and take off like some others. July 1, 2014
Rated 5.0 out of 5.0 by Good product; great price! This is my second Bosch sander. One problem with these units is the tendency for the screw to loosen which attaches the pad to the shaft. If this happens and sanding continues, the screw will seize in the shaft, making it nearly impossible to remove. I recommend checking screw tightness often. I bought this replacement because of this problem with my first sander. The first time it happened I was able to get the screw out and ordered the necessary parts to restore it. But in the second instance I chose to buy new because this time the repair would have required a new pad (which I had to cut off to enable the screw to be removed -- Then the screw wrung off rather than back out. Nonetheless, I liked the sander well enough to replace it in kind. January 13, 2015
Rated 4.0 out of 5.0 by Powerful Great sander but hookup to vaccum is less than desired. Somebody needs to reengineer the plastic connection so that it will connect to a shop vac. Other than that it is a great product and has lots of Amps. May 25, 2014
Rated 4.0 out of 5.0 by Low vibration I needed a new ROS and like Bosch tools so I bought this one and am Happy for the most part The only thing I am not happy with is the dust collection (filter holder) It's almost impossible to remove, I have large hands and it's nearly impossible to remove it for cleaning September 26, 2013
Rated 5.0 out of 5.0 by Awesome sander! I have now used this for for a few months and all I can say is Wow! It is a bit heavier than my earlier ones but the power and smoothness of operation are worth the extra weight. July 21, 2013
Rated 5.0 out of 5.0 by Excellent Sander I bought this sander to refinish the ten inch pine poles that support my front and back patio. There are a total of 9 poles and 18 vega's. In other words a lot of sanding work and a tough job for this sander. I was amazed at the performance of this tool. I advise you to hang on tight when using the aggressive setting. The extra long cord comes in handy. Great Tool. June 19, 2011
Rated 5.0 out of 5.0 by Reliable, smooth finish and durable. I've had this sander for over 7years (2011). I have found it to be an extremely well balanced tool. It has minimal vibration which allows for prolonged sanding. The finish it leaves is very smooth and sanded evenly (back to the balance thing) and the dust collection is highly effective with the supplied canister filter. But if that's not good enough there is a hose option, when connected to a shop vac the effectiveness of the dust collection increases significantly (which is hard to imagine). I use quality sandpapers and because of the effectiveness of the dust collection my sanding disc's last for a long time because the paper doesn't clog and then burn due to the dust. It should also be noted that this sander is not one of those that screams loudly at you.... And just so you know in addition to the one I bought long ago, I inherited my dad's which is about 4 years old and it too has the exact same performance characteristics as the one I bought many years agol. July 23, 2011
Rated 5.0 out of 5.0 by Good tool, easy to use, good production. Bought this sander for a couple of projects I was starting and was glad I chose the Bosch. I've used a palm sander on some of my smaller projects, and while it has its place, it just takes a lot more time to get the job done. The Bosch is a little heavier, but still easy to handle without tiring. The variable speed setting works especially well when used with the trigger lock. No complaints. June 4, 2013
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