Nitro 20V Brushless 13" Cordless String Trimmer

3 Year Warranty
30 Day Guarantee
As low as $139.99 Regular Price $89.99
Coming Soon!

Be notified when this item arrives

  • Proven Power—Worx NITRO™ tools are built for pro-level performance to elevate power, speed, and productivity on every task.
  • Built with a high-efficiency brushless motor, which runs 50% longer, is 25% more powerful, and has a 10% longer life than brushed motors.
  • 13” dual-exit cutting head supports powerful pro-grade trimming to efficiently cut dense grass along sidewalks, driveways, retaining walls, and more.
  • Push-button command feed easily and efficiently extends trimmer line on demand.
  • 3-in-1 functionality converts between trimming, edging, and mini-mower modes in seconds.
  • Edging wheels offer added control and support for clean, crisp edges.
  • 90° pivoting head adjusts to accommodate sloped and hard-to-reach areas.
  • Telescopic rotating shaft adjusts to fit user’s height and positioning.
  • Adjustable auxiliary handle simplifies handling and boosts comfort.
  • Same Battery, Expandable Power. The same battery powers over 75+ 20V, 40V, and 80V lifestyle, garden, and power tools in the Power Share™ family.
Battery Capacity
Cutting Diameter
13 in.
Line Feed
Dual-Exit, Command Feed
Line Diameter
0.065 in.
6.7 lbs.
(1) - Nitro 20V 13" Grass Trimmer
(1) - 4.0Ah Batteries (WA3012)
(1) - 4A Charger (WA3881)

Much like the Worx GT grass trimmers, the WG173 is 20V and offers ultimate versatility and adjustability.  A push-button command feed line advancement system, adjustable auxiliary handle, telescoping shaft, pivoting head, and edging wheels make this grass trimmer fun and easy to use.​

The WG173 takes this versatility to the next level by offering a brushless motor for higher power, extended runtime, and longer life.  Dual-exit line also provides improved work efficiency.​

The WG173 utilizes WA0054 dual-exit replacement spool.You may also use WA0007

California Proposition 65 Warning 

Warning: This product can expose you to chemicals including lead and Di(2-ethylhexyl)phthalate (DEHP) which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

ADVERTENCIA: Este producto puede exponerle a químicos incluyendo lead and Di(2-ethylhexyl)phthalate (DEHP), que son conocidos por el Estado de California como causantes de cáncer y defectos de nacimiento u otros daños reproductivos. Para mayor información, visite

AVERTISSEMENT: Ce produit peut vous exposer à des agents chimiques, y compris lead and Di(2-ethylhexyl)phthalate (DEHP), identifiés par l'État de Californie comme pouvant causer le cancer et des malformations congénitales ou autres effets nocifs sur la reproduction.  Pour de plus amples informations, prière de consulter

orange, black and white logo for Worx NITRO toolsorange, black and white logo for Worx NITRO tools

Proven Power

The power and advanced technology to expertly handle any level project with Worx NITRO cordless tools and accessories. Do more, finish faster and deliver real results with every charge.

Worx Nitro 20V 13" Cordless String Trimmer

The Trouble-Free Trimmer

Dual-Exit Efficiency

Trim sidewalks, edge driveways, or slice through dense overgrowth with the 13" dual-exit head that's designed for smooth, elevated cutting efficiency.

Designed for Versatility

Step up beyond standard tasks with 3-in-1 functionality to easily switch between trimmer, edger, and mini-mower modes. Whatever the task, you can heighten comfort and control using the trimmer's telescoping shaft and adjustable auxiliary handle.

Extend Line with Ease

Never struggle to advance the trimmer line. Rely on the push-button command feed system to easily and efficiently extend the line with a simple touch.

advanced engineering iconadvanced engineering icon

Advanced Enginnering

Efficiency and advanced engineering powered by cutting-edge research and innovation produces professional grade cordless tools.

brushless motor iconbrushless motor icon

Brushless Motor

Brushless motors are also lighter and more compact than traditional motors, making Worx NITRO™ tools lighter and easier to operate even in the toughest conditions.

power share 20v pro batterypower share 20v pro battery

Gas-like Power With Power Share™

Multiple Power Share™ batteries offer longer runtimes and increased performance for denser, more challenging lawns.

orange, black and white logo for Worx NITRO toolsorange, black and white logo for Worx NITRO tools

Proven Power

The power and technology to do more, finish faster and deliver real results with every charge.