Dewalt DCS438B 20V MAX XR Brushless Lithium-Ion 3 in. Cordless Cut-Off Tool (Tool Only)

Dewalt Model: dewndcs438b

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Dewalt DCS438B 20V MAX XR Brushless Lithium-Ion 3 in. Cordless Cut-Off Tool (Tool Only) Dewalt Model: dewndcs438b
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Product Features & specs :

Dewalt DCS438B 20V MAX XR Brushless Lithium-Ion 3 in. Cordless Cut-Off Tool (Tool Only)


Cut a wide range of tough materials with the XR 20V MAX Brushless 3 in. Cut-Off Tool. With a no-load speed of 20000 RPM, this durable tool is designed to cut through a variety of materials like metal, tile, stone, plastic, and drywall/fiber cement. You won't waste time hunting for a hex wrench thanks to the onboard storage and spindle lock which enable quick wheel changes. With both forward and reverse capability, you can conveniently change the direction of the cut depending on the application. The included dust shroud with adjustable shoe and AirLock connection allows for convenient attachment to DEWALT extractors, while the integrated LED lets you work in dark spaces. This versatile tool is Lanyard Ready; Capable to protect against drops, and is Chip-Ready to allow tracking via the TOOL CONNECT System (chip and lanyard sold separately).


  • POWER THROUGH DIFFICULT APPLICATIONS with brushless motor and 550 MWO

  • CUT A WIDE RANGE OF MATERIALS: Includes Bonded Abrasive Wheel, Diamond Multi-Material Wheel, and Diamond Tile Wheel (This blade uses manufactured diamonds engineered for cutting)


  • CONVENIENTLY SET DESIRED DEPTH: Tool-free depth adjustment for shoe with a 7/8 in. max depth of cut

  • CONNECT TO EXTRACTORS: Includes a removable dust shroud with an AirLock connection, enabling the unit to be connected to a DEWALT extractor (sold separately)

  • COMPATIBLE WITH ACCESSORIES: Includes an adaptor ring to be placed over 3/8 in. arbor, allowing use of 3 in. accessories that require a 7/16 in. arbor

  • QUICKLY ADJUST SPARK DIRECTION when cutting metal with tool-free adjustable guard

  • TOOL CONNECT CHIP READY: Chip pocket accepts TOOL CONNECT Chip DCE042 (sold separately) and connects with Site Manager app for easy asset management on the jobsite

What’s Included:

  • 20V MAX XR Li-Ion 3" Cut-Off Tool (Tool Only) - DCS438B

  • Bonded Abrasive Wheel - DW8711

  • Diamond Multi-Material Wheel - DW8530

  • Diamond Tile Wheel - DW47350

  • Removable dust shroud with adjustable shoe and AirLock connection

  • 7/16 in. Arbor Adapter Ring

  • Hex Wrench

Power Source


Wifi compatibility


Batteries Included


Bluetooth Compatibility


Motor Type


Charger Included


Wheel Diameter

3 in

No-Load Speed (RPM)

0 - 20000

Case Included





11 in.


2.07 lbs.

Warranty Term

3 Year

Reviews :

Q & A :


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.