WORX vs Kobalt: String Trimmers Compared by Specs
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This WORX vs kobalt string trimmer comparison looks at two distinct cordless options. Both tools are battery-powered and designed for yard maintenance. The main difference lies in their power systems and versatility. The WORX model offers a multi-tool kit with a 20V system, while the Kobalt option is a dedicated 40V Max trimmer. You need to decide which voltage and feature set best fits your specific lawn care needs.
Key differences
| Aspect | WORX WG931 20V 3-in-1 Kit | Kobalt 40V Max 15-Inch Straight Shaft Trimmer |
|---|---|---|
| Voltage | 20V | 40V Max |
| Cutting Swath | 12 in | 15 in |
| Shaft Type | not listed | straight |
| Power Source | battery | cordless |
| Included Battery | not listed | Tool Only |
Which one should you choose?
Choose WORX WG931 20V 3-in-1 Kit if
- You want a multi-tool kit that includes a blower and hedge trimmer.
- You prefer a 20V system compatible with other WORX Power Share tools.
- You need a string trimmer with a command feed line system.
Choose Kobalt 40V Max 15-Inch Straight Shaft Trimmer if
- You prefer a higher voltage 40V Max power system.
- You want a dedicated trimmer with a 15-inch cutting width.
- You need a straight shaft design for specific ergonomic handling.
Verdict: Choose the WORX kit if you need versatility and value an all-in-one solution for trimming, edging, and blowing. Pick the Kobalt model if you prioritize a dedicated high-voltage trimmer with a wider cutting swath. Your decision should depend on whether you want a multi-tool system or a specialized high-power unit.
WORX vs Kobalt Trimmer Specs
Voltage system
The WORX WG931 operates on a 20V platform. This is part of the WORX Power Share system, which allows you to use the same batteries across a wide range of 20V and 40V tools. The Kobalt trimmer runs on a 40V Max system. Higher voltage often translates to more power for tough weeds. However, the WORX kit includes multiple tools that share that 20V battery. The Kobalt is sold as a bare tool, meaning you need a compatible 40V battery separately. Your existing battery ecosystem will dictate which system makes more sense for your yard.
Cutting width
Cutting width determines how much ground you cover with each pass. The Kobalt trimmer features a 15-inch cutting swath. This wider deck can handle larger areas of grass and weeds more efficiently. The WORX WG931 has a 12-inch cutting width for its string trimmer component. While narrower, it is part of a versatile kit. The WORX hedge trimmer attachment has a 22-inch cutting width, but that is for hedges, not grass. For pure lawn edging and trimming, the Kobalt offers a wider reach. You will need fewer passes with the Kobalt to clear the same amount of overgrowth.
Shaft type
The shaft design affects balance and maneuverability. The Kobalt uses a straight shaft. This design is common for professional-style trimmers and offers good balance for overhead work. The WORX WG931 is a kit, but the trimmer component typically features a curved shaft for standard string trimmers, though specific shaft details are not fully listed in the provided data. The straight shaft of the Kobalt allows for easier adjustment of the cutting head height. It also tends to be more durable against impacts with hard objects. If you prefer a traditional trimmer feel, the Kobalt’s straight design is a clear choice.
Versatility and attachments
The WORX WG931 is marketed as a 3-in-1 kit. It includes a 2-in-1 grass trimmer and edger, a 22-inch hedge trimmer, and a 360 CFM leaf blower. All three tools use the same 20V battery. This provides significant versatility for different yard tasks. The Kobalt is a single-purpose string trimmer. It does not include additional attachments like a blower or hedge trimmer in this specific model. If you need to trim hedges or blow leaves, you would need separate tools for the Kobalt system. The WORX kit consolidates multiple tools into one package.
Line feed system
How you replace or extend the trimmer line matters for convenience. The WORX WG931 features a command feed system. This allows you to push a button to release more line when it wears down. It also comes with free spools for life. The Kobalt trimmer’s line feed system is not specified in the provided data. Many modern trimmers use bump feed, where you tap the head on the ground. Without specific data, we cannot compare the WORX command feed to the Kobalt’s method. However, the button-feed system on the WORX offers a distinct advantage if you prefer not to bump the trimmer head.
Which trimmer fits your yard needs
Homeowners wanting a versatile multi-tool kit
The WORX WG931 is a complete 3-in-1 kit that includes a 12-inch trimmer, a 22-inch hedge trimmer, and a 360 CFM blower. It uses a 20V battery system compatible with other WORX tools. This bundle offers significant versatility for various yard tasks without requiring multiple separate devices or high voltage platforms.
Users preferring a wider cutting swath
The Kobalt trimmer features a 15-inch cutting width, which is wider than the WORX 12-inch model. It operates on a 40V Max platform for potentially higher power. This straight-shaft design is ideal for users who prioritize a broader cutting path to cover more ground efficiently during each pass.
Gardeners needing an edging conversion feature
The WORX model converts from a string trimmer to a wheeled edger in seconds. It uses a command feed system for on-demand line extension. This feature allows you to switch between trimming and edging tasks quickly. The included 22-inch hedge trimmer and 75 MPH blower add further utility to this single tool.
The products compared
WORX WG931 20V 3-in-1 Kit
Best for: mixed yard tasks with one battery system
- Voltage
- 20V
- Cutting Swath
- 12"
- Power Source
- battery
- Line Feed System
- push-button
- Battery Capacity
- 2.0Ah
- Cutting Width
- 22-Inch
View on Amazon: WORX WG931 20V 3-in-1 Kit Affiliate link
This WORX kit combines a 12-inch string trimmer, a 22-inch hedge trimmer, and a 360 CFM blower into one 20V system. It features command feed for line extension and a wheeled edger conversion. The 17.7-pound unit fits users wanting multiple tools on a single battery platform. It suits those managing mixed yard tasks without needing heavy commercial equipment.
Pros
- 20V battery platform compatible with other WORX tools
- 12-inch cutting swath with command feed line system
- Converts to a wheeled edger in seconds
- 22-inch dual-action hedge trimmer blades
- Turbine blower delivers up to 75 MPH air speed
Cons
- 20V voltage is lower than the 40V competitor
- 12-inch cutting width is narrower than standard trimmers
- Total weight of 17.7 pounds is substantial for overhead use
Good fit if
- You need a trimmer, hedge trimmer, and blower in one package
- You already own other WORX 20V tools
- You want to convert your trimmer into a wheeled edger
Skip if
- You require a 40V system for longer runtime
- You prefer a dedicated straight-shaft trimmer
- You want a lighter tool for extended overhead trimming
Verdict: WORX WG931 3-in-1 20V Kit is a versatile bundle for homeowners who want to trim, hedge, and blow leaves using a single 20V battery system. It fits users who value versatility over raw cutting width or voltage.
Kobalt 40V Max 15-Inch Straight Shaft Trimmer
Best for: existing Kobalt 40V battery owners
- Voltage
- 40V Max
- Cutting Swath
- 15 in
- Power Source
- cordless
- Shaft Type
- straight
- Cutting Width
- 15-Inch
- Included Battery
- Tool Only
View on Amazon: Kobalt 40V Max 15-Inch Straight Shaft Trimmer Affiliate link
This Kobalt string trimmer operates on a 40V Max cordless platform. It features a straight shaft and a 15-inch cutting swath. The unit is sold as a bare tool, so you must provide your own battery. Its dimensions are 38 inches in length, 12 inches in width, and 5 inches in height. It is designed for users who already own compatible 40V batteries and need a straightforward trimming solution.
Pros
- 40V Max power system
- 15-inch cutting swath
- Straight shaft design
- Bare tool configuration
Cons
- Battery not included
- Smaller 15-inch cutting width compared to competitors
- Straight shaft may be less comfortable for some users
Good fit if
- You already own Kobalt 40V batteries
- You prefer a straight shaft for precision
- You need a lightweight trimmer for tight spaces
Skip if
- You need a complete kit with battery and charger
- You require a wider cutting swath for large areas
- You prefer a curved shaft for easier handling
Verdict: Kobalt 40V 15-in Straight String Trimmer is a practical option for existing Kobalt 40V users who need a compact, straight-shaft trimmer. It fits those who prioritize compatibility over a complete out-of-the-box solution.
Specifications side by side
| Spec | WORX WG931 20V 3-in-1 Kit | Kobalt 40V Max 15-Inch Straight Shaft Trimmer |
|---|---|---|
| Voltage | 20V | 40V Max |
| Cutting Swath | 12" | 15 in |
| Power Source | battery | cordless |
| Shaft Type | not stated | straight |
| Line Feed System | push-button | not stated |
| Battery Capacity | 2.0Ah | not stated |
| Cutting Width | 22-Inch | 15-Inch |
| Included Battery | not stated | Tool Only |
| Dimensions | 36.3 × 7.5 × 5.5 inches | 38 × 12 × 5 inches |
| Weight | 17.7 pounds | not stated |
| Size | 20V Trimmer + Hedge Trimmer + Turbine Blower | 15-in |
| Color | Black and Orange | Multicolor |
| Model | WG931 | not stated |
Frequently asked questions
Which string trimmer is better for mixed yard tasks?
The WORX WG931 is the better choice for mixed tasks. It is a 3-in-1 kit that includes a trimmer, hedge trimmer, and blower. This bundle uses a single 20V battery system for all tools. You get versatility without buying separate devices. The Kobalt model is a standalone trimmer only.
What is the difference in voltage between WORX and Kobalt trimmers?
The WORX WG931 operates on a 20V platform. The Kobalt 40V Max trimmer uses a 40V system. Higher voltage in the Kobalt unit may provide more power for dense vegetation. The WORX system is compatible with other 20V and 40V WORX tools.
Does the WORX kit come with a battery included?
The WORX WG931 is sold as a complete kit. It includes the trimmer, hedge trimmer, and blower attachments. The Kobalt 40V Max trimmer is listed as tool only. You must purchase a compatible battery separately for the Kobalt unit if you do not already own one.
How wide is the cutting path for each trimmer?
The WORX WG931 hedge trimmer attachment has a 22-inch cutting width. The Kobalt 40V Max trimmer has a 15-inch cutting width. The WORX hedge attachment covers more area per pass. The Kobalt trimmer width is standard for a dedicated string trimmer.
Which trimmer is lighter and easier to handle?
The WORX WG931 kit weighs 17.7 pounds. The Kobalt 40V Max trimmer weight is not listed in the data. The WORX unit measures 36.3 inches in length. The Kobalt trimmer is 38 inches long. The shorter WORX shaft may feel more maneuverable for some users.
Can I use the WORX battery with other WORX tools?
Yes. The WORX WG931 uses the 20V Power Share system. This allows you to use the same batteries across a wide range of WORX tools. You can swap batteries between the trimmer, hedge trimmer, and blower included in the kit.
Is the Kobalt trimmer a straight shaft or curved shaft?
The Kobalt 40V Max is a straight shaft trimmer. The WORX WG931 kit includes a trimmer attachment, but its shaft type is not specified in the data. Straight shafts often allow for easier adjustment of the cutting head height.