October 20, 2021

Professional Tool Reviews for Pros

Worx Nitro 20V Power Share 4.5-Inch Compact Circular Saw | WX531L

Worx Compact Circular Saw Designed for Better Power, Runtime, and Maneuverability

The Worx Nitro 20V Power Share 4.5-inch compact circular saw (WX531L) emphasizes maximum power, extended runtime, and easy handling and portability. This lightweight cordless saw can cut stock 2x stock lumber in a single pass as well as make quick and precise crosscuts, rip cuts, and plunge cuts in plywood.

What’s the Big Deal?

One of the big draws of the Worx Compact Circular Saw revolves around its size and weight. At just 3.8 lbs with the kitted 2.0Ah battery attached, it provides an extremely lightweight cutting tool. It also maneuvers easily and is particularly helpful for work that takes you into tight corners.

Worx Compact Circular Saw

The Worx WX531L features a slim, nylon composite body and narrow baseplate to allow for cutting in confined spaces. The left-sided blade design gives you an unobstructed view of the cut line.

The Worx Compact Circular Saw uses a 4-1/2 in. thin-kerf blade that pairs well with the motor to extend runtime and make more cuts per charge. The brushless motor delivers a no-load speed of 6,900 rpm. Worx designed the saw for a maximum cutting depth at 90º of 1-1/2 in. It can make bevel cuts from 0º – 46º with a 1-1/8 in. maximum depth of cut at 45º.

Worx Nitro 20V Power Share 4.5-inch Compact Circular Saw

Other Features

  • Integrated safety trigger
  • Electric blade brake
  • Dust extraction port
  • Parallel edge guide for accurate rip cuts
  • LED work light


The Worx Nitro 20V Power Share 4.5-inch circular saw comes as a bare tool or kitted with a 2.0 Ah battery and charger. As a bare tool, it retails for $99.99, while the kit will run you $159.99. Either option includes a 24-tooth carbide-tipped blade, vacuum adapter, parallel edge guide, Allen wrench, carrying bag, and 3-year warranty.

Worx Compact Circular Saw Specs

  • Model: Worx WX531L
  • Voltage: 20V Max
  • No-Load Speed: 6,900 rpm
  • Blade Size: 4 1/2 in.
  • Arbor: 3/8 in.
  • Bevel Capacity: 0-46º
  • Max Cutting Depth: 1 1/2 in.
  • Weight: 3.8 lbs.
  • Warranty: 3 years
  • Price: $159.99

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