Dremel Saw-Max (SM20-02) Review

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Along with gadgets and tech-toys, I like nice tools. Over the decades I have done countless home-improvement and construction projects,accumulating many very capable tools along the way. I have definitely learned that the ‘right tool for the job’ can save you huge amounts of time, money, and effort….safer too. Always looking to increase my arsenal of worthy equipment, I jumped at the chance to review Dremel’s new mini, handheld cutting tool, the Saw-Max.

A key component to a good or great tool is a nice, well-organized storage case. It is not an absolute necessity but it certainly is a perk for better storage and transportation. In addition, I find a good case keeps your tools/gear in better condition and running longer.

Fortunately the Saw-Max comes in/includes a nicely made, well-organized case. Not only is there a place for the Saw-Max and its power cord but a dozen or so saw blades and a few allen wrenches too.

Package Contents:

  • Dremel Saw-Max SM20 tool
  • TRSM810 Dust Port Adapter
  • SM500 Multi-Purpose Carbide Wheel
  • SM510 Metal Cut-Off Wheel
  • SM540 Tile Diamond Wheel
  • SM600 Multi-Purpose Flush Cut Carbide Wheel
  • Allen Wrench
  • Storage Case
  • Instruction Manual

The Dremel Saw-Max SM20 is designed for one-handed use and can make straight, plunge, or flush cuts up to 3/4″ deep. It has the ability/horsepower to cut wood, plastic, laminates, drywall, sheet metal, and tile. This compact handsaw uses 3”-diameter blades embedded with abrasives (carbide, diamond, aluminum oxide) for cutting edges rather than cutting teeth like a typical skilsaw blade. The Saw-Max is powered by a 6 amp motor generating approximately 17,000 rpms.

Changing the cutting wheel is quick and easy, just depress the lock button on the top, front of the tool and use the included allen wrench to loosen the nut clockwise. Remove the bolt and pressure plate, swap the blade wheel, then replace the plate and tighten the bolt.


  • Powerful 6 amp motor
  • Versatile Cutting System – for cutting a variety of materials including wood, plastic, metal, tile and masonry
  • Worm Drive gearing – for durability and power
  • Excellent line of sight for precise, confident cuts
  • Depth guide for precise plunge cuts
  • Lock-on button for comfort during extended use
  • On board dust extraction port to maintain a clean workplace

As stated above, the Saw-Max has the ability to adjust its cutting depth, down to three quarters of an inch. While the Saw-Max cannot replace your skilsaw or tablesaw, it can definitely do the more fine, precision construction/cutting efforts.

Even though it is not included with the Saw-Max, there is a hard-point for attaching a perpendicular handle for better, more precise control.

Like a majority of/all modern day hand tools, the Saw-Max not only has an activation trigger but an additional switch that must be held down for the saw to work. This safety latch is simple and easy to actuate but does help keep the saw from accidentally being turned on.

Also engineered into the handle, Dremel has included a lock-on button for comfort/convenience during extended use. It is well placed, out of the way so it does not get accidentally activated.

In my testing, I have used it to cut through wood, tile and metal. Overall, the Saw-Max did a good, if not great job, considering its size and all-purpose nature. When I first saw pictures of the Saw-Max, my initial impression was that it was too small and not rugged enough to withstand years of construction projects. That said, I have to admit that I was totally wrong. The Saw-Max is very well constructed and nicely sized, with a good overall design.  It is built to get the small to medium cutting jobs done.

For this review, I wanted to use the Saw-Max on one of my actual home-improvement projects. To give you a bit of background info, I have procrastinated all year on installing a metal roof on our pump house.  Since the skies have turned gray and stormy here in Seattle (fortunately I picked the one day in the next six months the clouds parted and did not rain), it was past the time to get it done. Typically I use a sawzall and metal cutters to cut metal roofing. But thought this the perfect trial for the Saw-Max and the included metal cutting blade.

As the video illustrates, the Saw-Max did a great job cutting through the thick gauge roofing. From a cutting perspective, it did very well…..stellar in fact. The Saw-Max enabled me to cut a perfect, relatively smooth line with little effort (definitely something a sawzall can not do). In the video above, not only am I cutting through the metal but a bit of the rock it is sitting on as well (nothing like a little operator error to prove a point 😉 ).

This type of abrasive cutting does cause you to use up quite a few blades during the course of a project (rate depends on the thickness/density of the material you are cutting). A fair trade considering the comparative easy and greater precision the Saw-Max gives you.

With the SM600 Multi-Purpose Flush Cut Carbide Wheel, the Saw-Max can do the sometimes difficult flush cuts needed for trim, flooring, doorways, and the like.

It’s handling characteristics were equally as surprising. The Saw-Max has a good heft/weight to it for its size and handles extremely well. There was little kickback or error caused by the torque of the saw’s operation. I have other small saws that I constantly have to be aware of them kicking back at me when cutting. While the Saw-Max did occasionally come back at me, it was rare and controlled.

The Dremel Saw-Max is a great little saw that can do many things a large saw cannot. With its excellent build quality, two year warranty, and reasonable price of $130, I would recommend this to anyone who needs a small, yet strong and versatile mini saw. I am very glad it has joined my army of tools ;).


Product Information

  • - Excellent build quality
  • - Strong, quiet motor
  • - Can cut tile, wood, and metal
  • - Can flush-cut
  • - Two year warranty
  • - In some applications, uses many abrasive blades

12 thoughts on “Dremel Saw-Max (SM20-02) Review”

  1. Gadgeteer Comment Policy - Please read before commenting
  2. Can put the edge guide through the saw max slots but how do you secure it to the saw? One demo stated to tighten it with the hex wrench but there is no hex fitting to tight.

  3. Amazon has the blades as does Wal-Mart. You can get them other places but shipping will nail you. Free shipping at Amazon for orders $25. So if you order multiples of a blade you will get free shipping. Wal-Mart has free shipping to store.

  4. I cut some 29 gauge tin with my saw max and it melted the foot behind the blade from the sparks. How do you prevent the foot from metling when cutting tin?

  5. One other comment I have is that I did find that when I used the wood/plastic blade to cut the tin it worked better than the metal cut off wheel does. It still throws sparks and melts the plastic foot as did the metal cut off wheet but they last much longer. The would eventualy start to break out around the edges but I ran them until they appeared to have cracks starting to run towards the center from the area they would chip out at. Three improvements I would make would be to make them with and adjustable variable speed, make the guard and foot out of metal and make toothed blades for them as well.

  6. The video above is private, but I want to know how th SawMax did in ripping the metal roof sheets. We do a lot of that on Mission work, ripping sheets 10 ft plus long. Will the SawMax handle that work???

  7. i had to cut a 20ft sheet and it was my first run at using this dremel. i burned through the metal cutting disk pretty quickly so i put in the wood blade. that worked quite well and lasts much longer. However, by the time i was done i had pretty well melted the plastic shoe on the backside closest to your had. i took it back and got it replaced. the rest of the sheets i cut i still used the wood blade but i stopped about every foot or so during cutting for about 10 seconds. that coupled with only using the flushcut wood blade and making sure the foot was all the way up so the cutting blade is fully exposed worked without melting the plastic foot on the second one. Also to help increase blade life i cut as shallow as i could with the blade so as little as absolutely nessary protruded below the tin. I saw a Rockwell equivalent at Menards a while back that is a little bigger but has a metal foot and a much better blade assortment selection. They actually have some fine tooth cutting blades which would probably work better than the dremel abrasive style cutting disks. The marginal size difference in size I don’t think would be an issue cutting sheets on a table or saw horses, it is still pretty compact.

  8. You must of been paid for the review. The machine is a waste of plastic parts. These are not for years of construction as you claim. Dewalt do that. These are a joke only good to use once every six months. Trust me I’ve just gone through 2 in 6 hours. Ohh I must of been doing something wrong to rough, not ready for some real work. Bad design, bad item. buying it in the first place was a must not

    1. Jason, who is “you” that you are referring to in the post? I have had this particular tool for several years and use it quite often (weekly) for cutting everything from tin to wood and it still does a very good job and has not quit me yet. I have never received any type of stipend, kick back or reward for any evaluation or opinion for this tool or anything else I have ever left a comment on.

  9. Received a Dremel Saw-Max SM20-03 for Xmas, however only the saw with two accessory blades. Need to purchase a ‘storage case’ to store saw. Need info on case, cost, etc…. Thanks…

  10. The saw it’s self is quite good. The blades though are horrible. Dremel should research toothed blades that fit their 77mm arbor.
    By including an adapter, the arbor diameter could adapt to other brands toothed blades. Unless of course unless their strategy is to sell blades like printer ink cartridges at 10x fair value?

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