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Bosch Sander Review – ROS20VSC Random Orbit Sander

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This is THE random orbit sander to own if you love woodworking

Review by: r-ice

My Bosch sander review

My assortment of Bosch sanders for my Bosch sander review of the ros20vscWhen I received my ROS20VSC from the folks at Bosch, I wanted to do a really in-depth Bosch sander review to show what this random orbit can handle.   As all woodworkers know, sanding is something that you have to do a lot of.   As a tool that you will be spending quite a bit of time using, you should choose one that fits you ergonomically as well as having the performance to give you smooth surfaces.

What is included in the box

  • RS034 Soft Sanding PadBosch sander review of the ros20vsc random orbit sander.
  • Damping Ring
  • Micro-filter Dust Canister
  • vac002 Vacuum Hose Adapter
  • Sanding disc
  • Carrying Bag, (I will be using it as a lunch bag as I am keeping this an an L-BOXX

Specifications

  • 5lbs weight
  • 9” in length
  • Eccentric offset is 3/64”
  • Orbit diameter 3/32”
  • Orbit radius 3/64”
  • 120v AC
  • Speed range 7500 -12000 OPM
  • Has dust collection

My Bosch sander review: First Impressions

As this is my first Bosch sander review I was thinking as I pulled the Ros20vsc Bosch sander out of the box that the fit and finish of the sander was impressive.  It weighs a substantial 3.5 lbs and has a nice heft to it.  The dust collection portion of the tool is pretty impressive. I liked the way the micro-filter system attaches and works with the Bosch sander during high speed material removal. The noise level was not bad at all.  Definitely better than a few of my other sanders where even with hearing protection they are still pretty loud. I don’t have a noise level meter so I wasn’t unable to get any numbers for this Bosch sander review.

My Bosch sander review: Putting it to the Test

In this Bosch sander review I was determined to push the Bosch ROS20VSC sander’s limits and use it on some end grain cutting boards that I was refinishing.  I felt the cutting boards were a little chopped up as I am not gentle with it, so it was the perfect time to test out the ROS20VSC.  I started at a lower grit with 40 grit sanding discs and went all the way to 320 grit, the end results are shown with the attached photos, they speak for themselves.

Bosch sander review of the ros20vsc random orbit sander - endgrain detail 1.    Bosch sander review of the ros20vsc random orbit sander - endgrain detail 2.

I found it extremely easy to move during sanding usage with the regular dust bag/box on.  However with the Bosch dust extractor, the suction is pretty crazy and you have to have an air hole on the vac to ease up on the suction.

Bosch sander review of the ros20vsc random orbit sander - airflow detail.However if you just use the regular micro-filter system, it works great. The dust gets trapped in the hard box and you can empty it out at your convenience. The box is securely mounted to the back of the sander and with a quick twist the box comes off to empty or to change over to plug in to the dust extractor.  I am impressed with the dust collection on this sander, it just doesn’t want to let dust escape.  Everything just gets sucked right up through the 8 hole sanding discs.

Even with the endgrain it was able to perform admirably.  I have to say this may be the first sander I reach for before any other ones I have for general sanding duties.

I found during the sanding of the endgrain cutting boards, that it gave me a smooth finish on the tough surface. As opposed to my other smaller sander it doesn’t leave huge swirl marks for me to take out later.

For this Bosch sander review I wanted to really make sure that I picked a tough project, which the endgrain is.  I also wanted to make sure that this sander was comfortable to use for long Bosch sander review of the ros20vsc random orbit sander - final results.periods of time.  I am happy to report that it is very comfortable to use and hold in my hand.  Even after prolonged use I didn’t feel the fatigue of holding on to the sander.  Even after using it to run through the several sandpaper grits I switched to, to get the cutting board to the mineral oil stage.

I have included a photo of the refinished end grain cutting board, and you can tell how smooth the sander left it. I didn’t use any other sander during this process. I wanted to know if I only had this sander, would it perform as I needed it. You can tell for yourself what it can do.

Here is a video of the sander in use with the Bosch dust extractor without the air hose open.

 

My Bosch Sander Review: Final Thoughts

I am impressed with this sander, I felt it performed like a larger and more expensive sander. It just feels right in the hand, everything feels like a great deal of thought went in to the engineering of this Bosch random orbit sander. Everything worked together as it should, there is no fighting to get the dust collection system open and switched over. There is no fighting to turn it on or to change sanding discs. It is a simple yet powerful sander that will fit the needs of a woodworker that sands as part of their workflow.

If you want to learn more about the Bosch ROS20VSC 5 in. Variable Speed Random Orbital Sander – click here.

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29 comments on “Bosch Sander Review – ROS20VSC Random Orbit Sander

  1. Charlie

    Very nice review – I like that you included the specs along with your impressions. And choosing a cutting board is not only a great option to test for the length of time spent sanding it, but it’s also an application that many, many woodworkers are involved with right now. Great work!

  2. Charlie

    Very nice review – I like that you included the specs along with your impressions. And choosing a cutting board is not only a great option to test for the length of time spent sanding it, but it’s also an application that many, many woodworkers are involved with right now. Great work!

  3. Brian

    Great review, I have had this sander for about 4 years, I actually purchased it as a refurbished,
    As you mentioned it is a great go to sander.
    Good choice to use for sander on the cutting board,

    Exactly what you said about the dust box, great dust collection. I think this is definitely a winner from Bosch.

  4. Brian

    Great review, I have had this sander for about 4 years, I actually purchased it as a refurbished,
    As you mentioned it is a great go to sander.
    Good choice to use for sander on the cutting board,

    Exactly what you said about the dust box, great dust collection. I think this is definitely a winner from Bosch.

  5. Bailey

    Thanks for posting this review. Does it take a standard 5″ hook and loop (Velcro) disc, or does it have a proprietary disc that has to be used?

    1. r-ice

      I looks standard 8 hole to me, however i have a bunch of bosch sanding discs, so i haven’t had to go buy regular ones. when I do, i’ll get back to you on that.

  6. Charles

    Excellent review R-ice. My RO sanders are pneumatic, and I primarily use them to quickly remove paint and auto body filler… dust control is non-existent. I have considered getting one for use on wood and you may have convinced me that I do need one

  7. Charles

    Excellent review R-ice. My RO sanders are pneumatic, and I primarily use them to quickly remove paint and auto body filler… dust control is non-existent. I have considered getting one for use on wood and you may have convinced me that I do need one

  8. Lon

    Thanks for the thorough review. This sander has a smaller orbit, 3/32″ versus the 5/32″ of the ROS65VC-5 to my surprise. Was not aware of this difference before. This looks like a sander that needs to be considered in my shop.

  9. Lon

    Thanks for the thorough review. This sander has a smaller orbit, 3/32″ versus the 5/32″ of the ROS65VC-5 to my surprise. Was not aware of this difference before. This looks like a sander that needs to be considered in my shop.

  10. Jon

    Thanks for the review Aaron. Did you find that the paper wore evenly? My ROS20 eats the paper on the perimeter of the disc and barely touches the middle!

  11. Alex

    Its a great little sander. It was the very first one I ever got from Bosch and just love it. For longer sanding section I grab the ROS65VC because I need vibration control.
    I enjoyed reading your review, Aaron.

  12. Alex

    Its a great little sander. It was the very first one I ever got from Bosch and just love it. For longer sanding section I grab the ROS65VC because I need vibration control.
    I enjoyed reading your review, Aaron.

  13. Lowell

    Once again Bosch hit a grand slam with this tool. I have worked as a finish carpenter and in cabinet shops for 12 years and have used a few different sanders but the Bosch is by far the best. Easy to control and comfortable to use. I even got one for my wife for her little sign making business. Great review!

  14. Benjamin

    THanks for the review, find it mimics my experience too! Is a fine sander with the provided dust collector or attached to an Airsweep Vacuum. It’s easy and ergonomic and just glides across the surface effortlessly. Imagine the DEVS is that much better and more aggressive. Though Bosch puts equal engineering behind everything, as you said it’s great for general sanding.

  15. David

    Thanks for this review. I love getting a Bosch tool when I can and I have been considering this one as well as one of the bigger ones. I have been using it’s yellow equivalent and it has been good. I need a second one in my shop and I think this will do the trick.

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