

⚡ Cut sharp, cut smart — the pro’s choice for unstoppable precision!
The DEWALT 20V MAX XR Cut Off Tool (DCS438B) is a compact, brushless cordless powerhouse featuring a 550W motor and 20,000 RPM speed. Equipped with three specialized diamond and abrasive wheels, it effortlessly cuts metal, tile, stone, and more. Its tool-free depth adjustment, bright LED light, and AirLock dust shroud for extractor compatibility make it a versatile, clean, and precise cutting solution for professionals on the go.




| ASIN | B09TB7M842 |
| Best Sellers Rank | #1,864 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #50 in Abrasive & Finishing Products |
| Brand Name | DEWALT |
| Color | Multi |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,081) |
| Global Trade Identification Number | 00885911757133 |
| Horsepower | 550 Watts |
| Included Components | DCS438 20V MAX* XR ® Brushless Cordless 3 in. Cut-Off Tool, Removable dust shroud with adjustable shoe and AirLock™ connection, DW8711 Bonded Abrasive Wheel, DW8530 Diamond† Multi-Material Wheel, (1) DW47350 Diamond† Tile Wheel, (1) 1-7/16 in. Arbor Adapter Ring, (1) Hex Wrench |
| Item Dimensions L x W x H | 4.88"L x 6.06"W x 4.88"H |
| Item Type Name | Cut Off |
| Item Weight | 3 Pounds |
| Manufacturer | DEWALT |
| Material Type | Diamond |
| Maximum Rotational Speed | 20000 RPM |
| Model Number | DCS438B |
| Power Source | Battery Powered |
| Style Name | Classic |
| UPC | 885911757133 |
| Unit Count | 1.0 Count |
| Voltage | 20 Volts |
| Wattage | 550 watts |
D**N
Effective small cutoff tool
Very nice small cutoff saw from DeWalt. Plenty of power for abrasive blade. Easy to handle. Did not notice vibration in use. Looks to be very durable.
J**N
Dewalt mini circular saw
Nice saw I purchased it for cutting 1 inch foam insulation sheets for my pole barn . It was hard to find a blade for ply wood [which would have worked best for my application].found some blades on Amazon that are carbide so they tend to heat and burn the wood and tends to kick back more on the syrifoam board .I have to lay a straight edge down on bead board to get a straight cut. I think it's mostly the blade that's causing the kick back.the saw comes with three blades and it works great for conduit.
G**N
YOU NEED THIS!!
Wow, this small cutoff tool is incredibly impressive! I used it to cut my entire patio, and the results went beyond my expectations. The powerful performance it provides makes it ideal for cutting stone and masonry easily. Its lightweight design and simple handling have quickly made it my favorite tool for working with stone. If you're searching for a dependable, efficient tool that gets the job done effortlessly, this is the one you need! The cordless feature is also a bonus. The tools cut accurately, and the speed is fantastic. The battery lasted through cutting 10 stones before needing a second, but they charge so fast—just keep a couple handy.
A**Z
Great product
Great product
J**D
⭐⭐⭐⭐⭐ Pocket Rocket of Power! The Most Versatile Tool I Own
The DeWalt 20V MAX XR Cut-Off Tool is not just a niche specialty tool; it is a compact powerhouse that has become my most used and favorite grab-and-go device in the truck. If you are looking for a small tool that can tackle huge jobs with minimal fuss, this is it. Unmatched Versatility in a Tiny Package What makes this tool truly shine is its ability to handle virtually any material you throw at it. I’ve been blown away by its capability and have used it on countless projects: Wood: Quickly trimming down fence pickets or cutting away damaged wood sections. Tile/Concrete: Cutting intricate curves in floor tile or making shallow, precise cuts through concrete patches and mortar. Metal: Slicing through bolts, rebar, or light gauge metal sheeting. Changing blades is fast, and the small size allows you to get into places where a full-size angle grinder would never fit. Power, Portability, and Endurance Despite its small form factor, the brushless motor and XR technology deliver plenty of torque. It chews through material much faster than you’d expect. The fact that it's so compact means I rarely bother dragging out bigger, corded tools anymore. It’s always charged, always in the truck, and always ready for that unexpected cut. The convenience factor of this tool is what truly sets it apart. If you are a professional or a serious DIYer who needs reliable cutting power across multiple materials, this is a 100% essential purchase. It’s a small tool that performs like a giant. Highly recommend!
G**C
Very quick work of car exhaust cutting.
I have owned DEWALT tools for about 10 years. I have always found them to be reliable and long lasting. I needed this cutoff saw to cut an exhaust pipe that was hanging under a car in a junk yard. Too far away to string a power cord, and too small of a space for anything I owned to do the job. The saw cuts very quickly and isn't overly rough on the cutting blades. My Dremel tools (corded) go through cutting discs way too fast. So no problem hear with the DEWALT. The saw also did not draw much on the battery. I had the saw on for probably 15 minutes total. I do have one issue with the saw: The speed on the blade rotation is really fast. I don't know if it has to be that way, but I would prefer a variable speed or maybe a 2 or 3 speed. Some jobs require a more gentle touch and a slower RPM option would make it better. I did not have an extra hand to video my work, but perhaps on the next project I can make an addition to this review.
B**A
Buy it. You won't be sorry.
This little cutter is awesome 0 kickback. It shuts down before it will twist and snap the cutting disc. You just gotta let the tool do the work. One hand cuts are common and easy. Compared to a 4 inch grinder with no blade guard. It's balance is spot on even with a 6 ah battery. I doubt I'll ever use a 4 inch or 6 inch cut off wheel again. It blasted through a 1/4 steel plate with very little effort. Almost no vibration at the start and throughout the cut. Feels very safe. The DeWalt all metals disk it came with didn't do that great on 1/4 aluminum. It started plugging up the disk. Which is common w cutting aluminum. This thing would be perfect for using in the field. Cutting tops of posts.. whatever. Totally worth it. After using it once. I would pay double what I paid. It's that good.👍
D**.
THE LITTLE MULTIPURPOSE CUTTING TOOL THAT I DIDN'T KNOW THAT I NEEDED....
I WAS PLEASED INITIALLY BC IT ARRIVED EARLY. I HAVE A DEWALT 60V. FLEXVOLT FULL SIZE 4.5"-6" ANGLE GRINDER BUT IT CAN BE A HASSLE TO DEPLOY FOR LITTLE JOBS THAT POP UP. THIS CUTTING TOOL IS LITE WEIGHT, SMALL, CONVENIENT, GETS INTO HARD TO REACH, SMALL PLACES BUT THIS THING PACKS A POWERFUL PUNCH THROUGH A MULTITUDE OF MATERIALS & SUBSTRATES. GREAT FOR TRIMMING TILE THAT GOES AROUND A KITCHEN BACKSPLASH RECEPTACLE, BATHROOM SHOWER FIXTURES, TOILET FLANGE etc.. CUTS CONDUIT, REBAR, ALUMINUM TRACK, BRICK, CONCRETE, STONE, ALL IN A LITTLE 3" POWERHOUSE THAT CAN BE QUICKLY & EASILY BROUGHT TO BEAR. IT HAS ALL THE LITTLE SAFETY BELLS & WHISTLES THAT A FULL SIZE ANGLE GRINDER HAS LIKE: ELECTRIC BRAKE, ADJUSTABLE GUARD W/A PETITE ERGONOMIC GRIP HANDLE & A BONUS, AN ADJUSTABLE DEPTH OF CUT REMOVABLE SHOE W/AIRLOCK DUST COLLECTION CAPABILITY. ONE THING THAT IS TRULY UNIQUE IS A DIRECTIONAL THUMB SWITCH TO SHOOT SPARKS, DUST EITHER AWAY FROM U OR TO MAKE SURE WHEN USING DIAMOND CUTTING WHEELS THAT THE ROTATION OF THE CUTTING DISC IS IN THE PROPER REQUIRED DIRECTION OF ROTATION. JUST LIKE A FULL SIZE ANGLE GRINDER (DEATH WHEEL), ALWAYS CUT IN A DIRECTION THAT PULLS THE TOOL AWAY FROM UR BODY IN CASE OF KICKBACK OR LOSS OF CONTROL. SMALL, CONVENIENT & POWERFUL, GREAT COMBINATION OF MATERIALS THAT THIS CUTTING TOOL CAN CONQUER. IT'S THE LITTLE TOOL THAT I DIDN'T KNOW THAT I NEEDED. VERY PLEASED....
M**D
Highly recommended
P**O
Llegó en tiempo y forma, bien protegido, con todos los accesorios especificados y funciona muy bien para trabajos muy específicos.
R**S
Great little tool. Hope to have as much use for it as all my buddy’s do.
A**Y
خفيف وقوي وجودة
E**C
I am a diver and needed to cut many tiles both internal and external, and also for small wood pieces. I was deciding between the compact DeWalt saw and this cut off tool, in the end chose this, based on: 1. Size - this thing is super compact and light, as a result, it is very easy to control with 1 hand. 2. Saw blade - the DeWalt compact saw is also amazing, but for wood cutting mainly and the blades are limited. 3. The power - don't be fooled by the size, this little thing throws a punch and cut through tough porcelain 3cm external tiles like butter. Paired with 5Ah battery, it gets the job done. However due to the size and design, one could argue an angled grinder might be more versatile as one cutting tool to rule them all. I don't disagree. But with my usage which focused on cutting straight line with ease, this I think will be better than an angled grinder. So, happy days. Cannot wait for my next project.
Trustpilot
5 days ago
3 weeks ago