DEWALT DCS438B 3 Inch Cordless Cut Off Tool (20V MAX Brushless Motor 20000 RPM Forward Reverse Metal Tile Sheet Rock Cutting Bare Tool)

In stock
SKU: DCS438B
Regular price $199.00 USD

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Achieve Fast Accurate Multi-Material Slicing in Tight Spaces with Advanced Directional Control

The DEWALT DCS438B 20V MAX XR Brushless Cordless 3-Inch Cut-Off Tool delivers clean, high-velocity sectioning through dense masonry, porcelain tile, metal sheeting, and drywall. Driven by an industrial brushless motor that produces 550 Max Watts Out (MWO) and an un-loaded spindle velocity of 20,000 RPM, this compact utility saw allows operators to execute straight plunge cuts up to 0.7 inches deep. The power head features a mechanical forward and reverse directional switch to divert sparking away from critical lines, coupled with an adjustable dust-extraction shroud that integrates smoothly into standard site vacuum equipment.

Best Used For:

  • Electrical Conduit and Pipe Fitting: Cleanly trimming EMT conduit, structural copper lines, and PVC piping without rough burrs.
  • Ceramic Tile and Masonry Installation: Scoring or shaping custom porcelain tiling, stone backsplashes, and cement backer boards accurately.
  • HVAC Sheet Metal Modification: Slicing straight or curved access paths directly through steel ventilation ductwork and flashing.

Key Performance & Safety Features

  • High-Torque Brushless Powerplant: Electronic brushless design maximizes multi-material cutting efficiency up to 550 MWO while dropping internal thermal wear patterns.
  • Bi-Directional Forward and Reverse Modes: Switchable rotation paths optimize cutting angles to safely direct active sparks and chip streams away from the operator.
  • Removable Dust Shroud with AirLock Connection: Integrated cutting guard connects directly to commercial extractors via a locking flange to keep work surfaces dust-free.
  • Tool-Free Cutting Depth Shoe: Precision stamped index ring features clear Imperial markings to facilitate micro-fine cutting depth alterations instantly.
  • Universal Blade Adaptor Geometry: Accommodates standard 3-inch cutting wheels with a 3/8-inch arbor, alongside an adapter ring for 7/16-inch wheel configurations.
  • Asset Management Site Readiness: Designated internal dock receives an automated Tool Connect monitoring chip (sold separately) for quick fleet tracking tracking options.

What's Included

  • (1) DCS438B 20V MAX XR Brushless Cordless 3-Inch Cut-Off Tool (Bare Tool)
  • (1) Removable Dust Shroud Assembly with Adjustable Depth Shoe
  • (1) 3-Inch Premium Bonded Abrasive Metal Cutting Wheel
  • (1) 3-Inch Segmented Diamond Multi-Material Cutting Wheel
  • (1) 3-Inch Continuous Rim Diamond Tile Cutting Wheel
  • (1) Heavy-Duty Steel Adaptor Ring for 7/16-Inch Arbor Wheels
  • (1) Spindle Hex Wrench

Technical Specifications

Technical Parameter Structured Product Data
Brand Manufacturer DEWALT
Model Number DCS438B
Product Classification Cut-Off Saw Tool
System Operating Voltage 20V MAX
Power Output Capability 550 MWO (Max Watts Out)
Motor Drive Mechanism Brushless
Maximum Spindle Speed 20,000 RPM (No-Load Velocity)
Cutting Disc Capacity 3.0 in
Standard Base Arbor Size 3/8 in (Includes 7/16 in Adapter Flange)
Maximum Plunge Cut Depth 0.7 in
Rotational Direction Modes Forward and Reverse Dual-Mode Operation
Illumination System Integrated High-Visibility LED Work Light
Dust Collection Type AirLock Vacuum-Ready Shroud Base
Total Kit Piece Count 8 Component Pieces

**Battery and charger sold separately.


Pro-Tip: Before cutting structural metal sheeting or hard porcelain tile, always toggle your directional switch to match your feed line. Use the forward