Worx Nitro 20V 13in Cordless String Trimmer - Brushless Power

In this review the Worx Nitro 20V 13in Cordless String Trimmer (WG173) is evaluated for homeowners and weekend landscapers who want faster coverage and easier handling. The bottom line: this trimmer's brushless motor and dual-line 13in cutting diameter deliver noticeably more power and a larger cutting swath than earlier Worx GT models, making it a strong choice for small to mid-size yards where speed and maneuverability matter most.

Key Features

• Brushless motor: The high-efficiency brushless motor runs longer, provides more power, and is designed for extended life compared with standard brushed motors.
• 13in dual-line cutting: A dual-line 0.065in setup and 13in cutting diameter create a trimming area that covers more ground, reducing time spent on edges and open lawn.
• Power Share compatibility: Uses the same 20V Power Share batteries that work with 140+ Worx products, so batteries are interchangeable across tools.
• COMMAND FEED instant line advancement: A push-button line feed replaces bump-feed methods, giving precise control over how much line is released during use.
• 3-in-1 functionality: Quickly converts between trimmer, wheeled edger, and mini-mower modes to handle edging, trimming, and small area mowing without swapping tools.
• Lightweight and adjustable: At about 6.62 lbs and with a 90 pivoting head, telescopic shaft, and adjustable handle, it is comfortable for extended use and better on slopes and around obstacles.

Who It's For

This trimmer is best for homeowners with small to medium lawns, people who value lightweight tools, and anyone already invested in the Worx Power Share battery ecosystem who wants to expand their cordless equipment without buying new batteries. The boosted runtime and brushless motor make it suitable for routine edge and walkway cleanups as well as trimming around plantings.

Those with very large properties or heavy-duty commercial landscaping needs should look at higher-voltage, professional-grade trimmers designed for all-day use. Also, if you need an included assortment of replacement spools, note that pre-wound replacement spools are sold separately.

Pros & Cons

Pros

• More efficient 13in dual-line cutting covers 3X more area than earlier GT models for faster work.
• Brushless motor gives longer runtime and increased power, improving performance on thicker grass.
• Lightweight design, telescopic shaft, and pivoting head make it easy to maneuver and comfortable to use.
• COMMAND FEED instant advancement and 3-in-1 modes add convenience and versatility for different tasks.

Cons

• Battery life is variable in real use; some users report shorter run times depending on battery condition and workload.
• Replacement pre-wound spools are an extra purchase if you prefer quick reloads.

Specifications

Our Verdict

The Worx Nitro 20V 13in is a smart mid-range cordless trimmer for homeowners who want a faster, lighter, and more versatile tool without stepping up to pro hardware. Its brushless motor, COMMAND FEED system, and Power Share battery compatibility deliver strong value for routine yard maintenance, though buyers should be aware that actual battery runtime can vary by task.

Frequently Asked Questions

Can I use other Worx Power Share batteries?
Yes, the trimmer accepts the same 20V Power Share batteries used across Worx tools for easy interchangeability.

How does the COMMAND FEED work?
COMMAND FEED advances line with a button press for controlled, instant line release instead of relying on bump-feed action.

Is the trimmer good for edging sidewalks?
Yes, the wheeled edger mode and 90 pivoting head make it effective for clean lines along sidewalks and driveways.