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⚡ Cut sharp, cut smart — power meets precision in your hands!
The DEWALT 20V MAX XR Cut Off Tool (DCS438B) is a compact, brushless cordless powerhouse delivering 550 watts and up to 20,000 RPM. Designed for professionals, it cuts through metal, tile, stone, plastic, and drywall with included bonded abrasive and diamond wheels. Featuring tool-free depth adjustment, a bright LED for low-light conditions, and a dust shroud compatible with DEWALT extractors, it ensures precision, cleanliness, and efficiency on every job site.

































| ASIN | B09TB7M842 |
| Best Sellers Rank | #2,684 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #70 in Abrasive & Finishing Products |
| Brand | DEWALT |
| Brand Name | DEWALT |
| Color | Multi |
| Customer Reviews | 4.6 out of 5 stars 3,143 Reviews |
| 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 |
| Manufacturer Part Number | DCS438B |
| Material | Diamond |
| Material Type | Diamond |
| Maximum Rotational Speed | 20000 RPM |
| Model Number | DCS438B |
| Power Source | Battery Powered |
| Product Dimensions | 4.88"L x 6.06"W x 4.88"H |
| Style | Classic |
| 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.
M**O
Great Decision to Buy this DeWalt Cut Off saw !!! The BEST !!!!!!!!!
OMG !!! This tool is Better than I ever expected !! Wow, Its Powerful, Smooth, Safe, Easy to operate !!
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.
C**K
Good quality and value.
Good quality and value.
K**W
Extremely useful
I did a DIY kitchen backsplash tile installation recently. I borrowed a friend's wet saw and purchased this cut-off tool. I've found myself reaching for this more often than the wet-saw. This tool comes with a blade guard, but I find it difficult to see the blade path with the guard installed. Drawback is that cutting tile dry without a guard is extremely dusty. Face mask, glasses, hearing protection, etc. -- wear it all. I find it can make quicker cuts then a wet saw can and the results are just as clean. Spraying the tile with a water bottle before cutting helps somewhat with the dust as well; doing so doesn't seem to be "recommended", but seems to work just fine. The visibility issue with the guard installed is why I deducted a star from my review. The tool comes with various blades; I've used it for cutting metal Schluter tile trims and the tile itself. This is going to be a very useful tool for a variety of home improvement projects.
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!
A**Z
Great product
Great product
Trustpilot
1 month ago
3 days ago