Bosch ROS20VSC vs ROS20VSK Compared

Last Updated on: 22nd November 2020, 06:28 am

If you’re a woodworker, then chances are, you already know that sanding is something you will need to do a whole lot of. A sander is a tool that you will be spending a great deal of time using in your shop, so you don’t want to choose the first one you come across. We recommend going for one that is ergonomic and has good performance. While there are many sanders out there for you to choose from, today, we are going to take a look at Bosch Ros20vsc vs Ros20vsk. Is there a difference between the two? Read on to find out …

Bosch Ros20vsc vs Ros20vsk What’s the Difference?

If you want the quick answer the only difference is that one model comes with a soft case and the other a hard case. In every other aspect, the two models are alike however if you want to read more about the features of the two then we discuss all their features and pros and cons below.

If you are in a hurry you can just head over to Amazon and check the latest price for:

BOSCH ROS20VSC – Soft Carrying Bag

BOSCH ROS20VSK – Hard Case

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Bosch ROS20VSC Random Orbital Sander Review

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For those of you that are looking for a good random orbit sander that will make your wood surfaces smooth as ever, then the Bosch ROS20VSC might just be a suitable option for you. When it comes to the features of this tool, there are many good ones, which make it stand out from the crowd. Let’s move forward and take a look …

Included in the Box:

  • Damping Ring
  • RS034 Soft Sanding Pad
  • Sanding Disc
  • Micro-Filter Dust Canister
  • Carrying Bag
  • Vac002 Vacuum Hose Adapter

The Setup Process

For this sander, the setup process is pretty straightforward. All you have to do really is install the disc. Align the eight holes that are running in the inside ring of the pad with the holes on the disc and then press. The pad fixes itself to the tool kind of like Velcro. Once you’re done using the pad, there’s a space between the main pad and the disc, just peel that back.

Bosch uses a hook and loop attachment system, which is popular with most of the orbital sanders. However, Bosch has created its own unique design that they call Hooktight. The Bosch version of the popular hook and loop system consists of over 35,000 hooks, which are responsible for holding the disc while it’s being used. The hooks are created from durable material, guaranteeing longevity.

Low-Vibration Operation

Bosch ROS20VSC

When you’re using a hand tool, the last thing you want is something that is super vibrated, leaving your hands feeling funny after you’re done using it. The ROS20VSC runs smoothly and doesn’t put off a whole lot of vibration. Plus, there’s a dampening brake system, which makes it flow even more smoothly. The vibration rate can be controlled as there’s an option to adjust it.

No Additional Device Needed

With the Bosch ROS20VSC sander, there are no additional devices needed in order to get that smooth finish. All of the tools you need come with it.

Variable Speed Control System

On the Bosch ROS20VSC, you have a variable speed control system, which means you get to set your desired speed. The speed can be as low as 7,500 OPM and work its way all the way up to 12,000 OPM. What this means is that you will be able to alter the speed of the sander based on the type of work you’re doing. If you’re simply polishing a delicate area and don’t want to gauge the surface then you can set the sander on a low speed. However, if you’re working on an extremely rough area, you will want to set it on the highest setting possible in order to get the job done.

Advanced Dust Collection System

Bosch ROS20VSC Palm Sander with microfilter dust canister

When it comes to this type of work, there’s going to be dust whether you like it or not. Thankfully, this sander has an advanced dust collection system. This system is capable of filtering super small dust particles.

When it comes time to empty the collector, it’s easy to remove. All you have to do is give the dust pod a nice twist and it will come right off – all you have to do is empty it, then reattach it. The canister itself is small, so you don’t have to worry about it getting in the way like the dust collectors on some of the other sanders.


The Bosch sander offers 2.5 amps, which professional woodworkers may frown upon, but after a trial run, chances are, they will be hooked. Once you have everything ready, plug the sander in, select the speed, and press the trigger button. if you have narrow notches that need to be sanded, that’s not going to be a problem.


  • Efficient
  • Extended palm, so you don’t need to use an external one.
  • Uses a loop and hook’s surface to secure the sanding discs.
  • Variable speeds


  • The lid bin is hard to close.

All in all, if you’re looking for a good sander, then the Bosch ROS20VSC is something that I would highly recommend. Its performance is top-notch, the advanced dust collection system does a good job and the variable speed control system makes it so that you can set it at different speeds depending on the task.

Bosch ROS20VSK Random Orbit Sander Kit Review

There is another Bosch sander that we would like to compare the ROS20VSC to and that’s the ROS20VSK.

Dust Collector

This sander also has a dust collector, which is pretty good. It doesn’t use the cloth bag like most of the other sanders out there – this one uses a paper element that is capable of filtering nearly every small particle. When the filter is clean, the performance is top-notch. Once dust particles start to close the filter, the performance is going to drop. When you notice this happening, you will need to empty the canister and clean the filter element.

Hook and Loop Disc Attachment

This type of thing is becoming more popular with orbital sanders. Being that this sander is also from Bosch, you can expect the same disc attachment as the Bosch ROS20VSC, which I just talked about. I can assure you that this is one of the best ways to secure a disc. The 35,000 hooks make sure they have a tight grip on the disc while you’re sanding.

Variable Speed Settings

This heavy-duty sander also has a variable speed dial, making for accurate sanding. When sanding delicate materials, this feature comes in handy as you can control the speed so that you don’t ruin the surface.

Anti-Spillback Canister Design

BOSCH ROS20VSK Palm Sander - 2.5 Amp 5 in. Corded Variable Speed Random Orbital Sander/Polisher Kit with Dust Collector and Hard Carrying Case, Blue

This little feature right here will help extend the life of the sander. When you’re emptying the dust from the canister, there’s a mechanism there that makes it so that there isn’t much dust going into the machine itself.

The Build Quality

I must admit, I’m quite impressed with the build quality of this tool and haven’t discovered a problem with it yet. The ergonomic design makes it comfortable to use (my hands don’t even get tired after using it).


  • The power switch is protected from dust
  • The top is wide and comfortable
  • It can run at variable speeds
  • Economically priced
  • Well built
  • Long power cord
  • Stubby vac port


  • The dust canister has a habit of clogging. To fix this, you will need to keep it clean.

All in all, if you’re on the market for a new sander, then the Bosch ROS20VSK would be a good option for you. This sander has everything you need in order to get that job done, which is why I’m recommending it.

Is There a Difference Between the Bosch ROS20VSC and the Bosch ROS20VSK?

Comparing these two together, there’s not really that big of a dissimilarity they seem to have the same features. The biggest difference I found was between the carrying back and the case. The ROS20VSC has a soft-sided nylon bag with a zipper to close it. The ROS20VSK, on the other hand, has a hard plastic case with a latch that keeps it closed. I’m serious, that right there is the only thing that sets these two apart.

The Discs

BOSCH ROS20VSK Palm Sander - 2.5 Amp 5 in. Corded Variable Speed Random Orbital Sander/Polisher Kit with Dust Collector and Hard Carrying Case, Blue

Both the Bosch ROS20VSC and the ROS20VSK use 5-inch discs, which is common, so you shouldn’t have a problem finding them in the hardware stores. The backing pad is soft, so both of the sanders are capable of not only handling flat surfaces but also contours. Both sanders, being that they’re from Bosch, uses the hook and look surface, which does a great job at holding the discs in place while using the device. Eventually, the backing pad will need to be replaced, but you’ll find that they last longer than most of the sanding discs out there.

In Conclusion

You see, there’s not that big of a difference between the Bosch ROS20VSC and the Bosch ROS20VSK orbital sander, so whether you pick one over the other, you can still rest with the satisfaction of knowing you picked a good one. Also, I’d like to mention that Bosch offers a nice 1-year limited warranty. This warranty includes free service and there’s also a 30-day money-back guarantee. With this warranty and guarantee, it’s obvious that the company believes in their tools.

Both of these palm grip random orbital sanders, I highly recommend to my readers. In the end, whether you choose the ROS20VSC or the ROS20VSK, what it all boils down to is the type of case you want – do you want a hard plastic carrying case that latches up or a nylon bag that zips up?