Dewalt DCS438B 20V Max XR Brushless Cordless 3″ Cut Off Tool – Tool Only

Built for tight spaces and fast, controlled cuts, the DEWALT DCS438B 20V MAX XR Brushless 3″ Cut-Off Tool delivers a no-load speed of 20,000 RPM with up to 550 MWO for demanding work. The compact, 2 lb tool is designed for one-handed use and includes forward/reverse operation to manage spark direction and help reduce burrs when cutting metal. With a 7/8″ maximum depth of cut and tool-free guard and depth settings (inch and millimeter markings), crews can move quickly between tasks and materials—metal, tile, stone, plastic, and fiber cement. An included dust shroud with AirLock™ connection pairs to DEWALT extractors for cleaner work areas, and the bright onboard LED improves visibility in dark corners and overhead work.

As part of the 20V MAX platform, this Tool Connect™ Chip-Ready model drops into existing kits and fleet programs. The box includes three 3″ wheels (bonded abrasive, diamond multi-material, diamond tile) and a 7/16″ arbor adapter ring, so teams can set up for metal cutoff, grout and tile work, or light masonry with minimal downtime. Battery and charger sold separately.

Dewalt 20V Max XR Brushless 3″ Cut Off Tool At a Glance

• 20,000 RPM Brushless Motor: Fast cutting with consistent power up to 550 MWO.
• 7/8″ Max Depth of Cut: Complete common cutoffs in a single pass.
• Forward/Reverse Direction: Control spark flow and help manage burrs on metal.
• AirLock™ Dust Shroud: Tool-free depth adjustment with inch/mm markings; connects to DEWALT extractors.
• Compact 2 lb Body: Comfortable one-handed control in tight or overhead spaces.
• LED Work Light: Improves line-of-cut visibility in dark areas.
• Accessory Compatibility: 3/8″ arbor with included 7/16″ adapter ring for more wheel options.
• Ready Out of the Box: Includes abrasive, diamond multi-material, and diamond tile wheels

Markets

• Construction & Renovation: Fast cutoffs in metal track, cement board, tile trim, and plastics.
• Electrical & HVAC: Trimming fasteners, unistrut, duct sections, and access cutouts in panels.
• Plumbing & Tile: Cutting tile, grout lines, PVC, copper/aluminum, and cement board on site.
• Automotive & Metal Fabrication: Sectioning sheet metal, bolts, brackets, and light fabrication tasks.
• Facility Maintenance & Municipal: Versatile cordless cutting for indoor repairs with extractor hookup.
• Trade Schools & Educational Programs: Teaches safe cutoff techniques with dust control and LED visibility.
• Advanced DIY/Home Workshops: Platform-compatible solution for precise, small-diameter cuts.

Professionals across these markets value the DCS438B for its speed, control, and clean setup. Electricians and HVAC techs can direct sparks away from sensitive areas using forward/reverse while maintaining a clear cut line with the LED. Tile and plumbing crews connect the AirLock dust shroud to a DEWALT extractor to keep work zones cleaner when scoring tile or trimming cement board. Maintenance teams benefit from the compact, 3″ wheel format for accurate cuts on brackets and fasteners without dragging cords. Because it’s part of the 20V MAX system and Tool Connect chip-ready, managers can track tools and keep batteries standardized across jobs.

Dewalt DCS438B 20V Max XR Brushless Cordless 3″ Cut Off Tool – Tool Only Features

• 20,000 RPM for fast and accurate cutting performance
• Reversible blade rotation for ultimate cutting control
• Part of the M12 system, featuring over 80+ tools
• POWERSTATE Brushless motor delivers maximum power and long motor life
• REDLINK Plus intelligence provides optimized performance and overload protection
• Tool free guard adjustment for convenience and ease of use
• Includes accessory guard and shoe with vacuum port for dust mitigation and cut depth adjustment
• Includes (1) metal cut off wheel, (1) Carbide abrasive blade, and (1) diamond tile blade
• Compatible with common 3 in. cut off wheels with 3/8 in. arbor
• Includes 7/16 in. flange adapter for compatibility with 3 in. remodeler saw-max accessories

Dewalt DCS438B 20V Max XR Brushless Cordless 3″ Cut Off Tool – Tool Only Includes

• (1) DCS438 20V MAX XR Brushless Cordless 3″ Cut-Off Tool
• (1) Removable Dust Shroud with Adjustable Shoe and AirLock™ Connection
• (1) DW8711 Bonded Abrasive Wheel
• (1) DW8530 Diamond Multi-Material Wheel
• (1) DW47350 Diamond Tile Wheel
• (1) 7/16″ Arbor Adapter Ring
• (1) Hex Wrench

Dewalt DCS438B 20V Max XR Brushless Cordless 3″ Cut Off Tool – Tool Only Specifications

• Model Number: DCS438B
• UPC: 885911757133
• Platform: DEWALT 20V MAX
• Power Source: Cordless (Lithium-Ion)
• Battery/Charger: Tool Only (Batteries Included: (0))
• Battery Voltage: 20V
• Motor: Brushless (up to 550 MWO)
• No-Load Speed: 20,000 RPM
• Blade/Wheel Diameter: 3″
• Arbor: 3/8″ (includes (1) 7/16″ adapter ring)
• Maximum Depth of Cut: 7/8″
• LED Light: Yes
• Forward/Reverse: Yes
• Guard: Tool-free adjustable
• Dust Shroud: Included; tool-free depth with inch/mm markings; AirLock™ compatible
• Product Weight (Tool-Only): 2.0 lbs
• Assembled Dimensions (L × W × H): 11.025″ × 5.963″ × 4.775″
• Assembled Weight: 2.4 lbs
• Packaged Dimensions (L × W × H): 11.1″ × 6″ × 4.9″
• Packaged Weight: 3.1 lbs
• Cuts Through: Stone, Metal, PVC, Aluminum, Fiber-Cement/Drywall
• Handheld or Stationary: Handheld
• Variable Speed: No
• Number of Pieces: (8)
• Saw Features: Depth Adjustment

Dewalt DCS438B 20V Max XR Brushless Cordless 3″ Cut Off Tool – Tool Only Warranty

• Dewalt’s Guaranteed Tough 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed

Why Customers Choose the Dewalt 20V Max XR Brushless Cordless 3″ Cut Off Tool

Installers choose the DCS438B because it combines a compact 3″ cut-off tool with true jobsite speed: a 20,000 RPM brushless drive, 7/8″ depth, and forward/reverse to direct sparks where they want them. On renovation punch lists and service calls, the AirLock dust shroud keeps the cordless cut off tool cleaner to use indoors, while the LED work light helps maintain a clear view along metal and tile cuts. Crews already on the 20V MAX platform can add this tool without changing chargers, and managers can make it Tool Connect chip-ready for tracking. With the included abrasive, diamond multi-material, and diamond tile wheels, teams move from metal to cement board to tile with minimal setup, reducing rework and keeping tasks efficient from demo to finish.