DeWalt DCS391N 18V XR 165mm Circular Saw (Body Only)

DeWalt DCS391N 18V XR 165mm Circular Saw (Body Only)

By DeWalt · Model: DCS391N-XJ · Tools

Cordless 18V XR circular saw with 165mm blade, 55mm depth of cut, and magnesium base. Body only — battery sold separately.

  • 165mm blade with 55mm max depth of cut
  • 3,700 RPM for fast cutting
  • Cast magnesium base for accuracy
  • Keyless bevel adjustment up to 47 degrees
  • Electronic motor brake for safety
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Overview

The DeWalt DCS391N is a well-established cordless circular saw in the 18V XR range. The cast magnesium base keeps it lightweight while providing consistent accuracy for repetitive cuts. The 165mm blade handles most sheet materials and timber up to 55mm at 90 degrees.

In-Depth Look

The DCS391N has been a staple in the DeWalt 18V range for years. While it uses a brushed motor rather than the newer brushless technology found in the DCS572, it remains a popular choice due to its lower price point and proven reliability.

The 165mm blade handles most common cutting tasks — sheet materials, decking boards, and framing timber. The keyless bevel adjustment is quick to set, and the electronic motor brake adds a useful safety feature when making repeated cuts.

Verdict

A proven, affordable cordless circular saw. If you’re already in the DeWalt 18V system and don’t need brushless efficiency, this does the job reliably.

Specifications
Blade Diameter165mm
Max Depth of Cut (90°)55mm
Max Depth of Cut (45°)42.5mm
No Load Speed3,700 RPM
Bevel Capacity0-47°
Weight (bare)3.0kg
Battery18V XR (not included)

Who It's For

  • Joiners and carpenters on site
  • Kitchen fitters cutting worktops and panels
  • General tradespeople needing a portable circular saw

Pros & Cons

Pros

  • Lightweight at 3.0kg bare
  • Magnesium base is rigid and accurate
  • Electronic brake stops blade quickly
  • Good dust extraction port

Cons

  • Brushed motor — less efficient than newer brushless models
  • No rail compatibility without adapter
  • Battery and charger not included
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