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WORX 20V Brushless 4.5-Inch Cordless or WORX 20V 4.5-Inch Brushless Angle? Which WORX Model to Buy

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You are comparing the worx 20v brushless 4 5 inch cordless vs 20v 4 5 inch brushless angle. Both models share a 20V brushless motor, 8,500 RPM speed, and anti-kickback safety. The main difference is the package. One includes a 2.0 Ah battery and charger. The other is a bare tool only. You need to decide if you want the complete starter kit or just the grinder body.

Key differences

AspectWORX 20V Brushless 4.5-Inch Cordless Angle GrinderWORX 20V 4.5-Inch Brushless Angle Grinder
Battery Included2.0 Ah 20V BatteryNo (bare tool)
Weight4.2 pounds5.71 pounds
Model NumberWX812LWX812L.9
ColorBlack/OrangeGrey, black

Which one should you choose?

Choose WORX 20V Brushless 4.5-Inch Cordless Angle Grinder if

  • You need a ready-to-use kit with a battery and charger included.
  • You prefer a lighter tool for extended use or tight spaces.

Choose WORX 20V 4.5-Inch Brushless Angle Grinder if

  • You already own WORX 20V batteries and only need the grinder.
  • You want the Nitro line engineered for greater power and performance.

Verdict: Choose the WX812L if you need a complete package with a battery and lighter weight. Pick the WX812L.9 if you already have compatible batteries and want the Nitro series tool only.

Comparing WORX WX812L Kits and Bare Tools

included tools

Edge: WORX 20V Brushless 4.5-Inch Cordless Angle Grinder

The WORX 20V Brushless 4.5-Inch Cordless Angle Grinder (WX812L) arrives as a complete starter kit. It includes the grinder, a 2.0 Ah 20V battery, a 5-hour charger, an auxiliary handle, a metal grinding disc, and a spanner wrench. In contrast, the WORX 20V 4.5-Inch Brushless Angle Grinder (WX812L.9) is sold as a bare tool. You get only the grinder itself. This means you must already own compatible batteries and a charger to use it. If you do not have existing WORX Power Share gear, the first option provides everything you need to start working immediately. The second option requires additional purchases before you can cut or grind anything.

weight

Edge: WORX 20V Brushless 4.5-Inch Cordless Angle Grinder

Weight significantly affects how comfortable a tool feels during extended use. The WORX 20V Brushless 4.5-Inch Cordless Angle Grinder weighs 4.2 pounds. This lighter profile contributes to its slim design, making it easier to maneuver in tight spaces and reducing fatigue in your arm. The WORX 20V 4.5-Inch Brushless Angle Grinder weighs 5.71 pounds. This is a notable difference of over a pound. The heavier bare tool may feel more substantial, but it requires more effort to hold steady for long periods. If you prioritize ease of handling and reduced strain, the lighter kit model offers a clear advantage for everyday tasks.

motor type

Edge: Tie

Both models utilize a brushless motor technology. The data confirms that the WORX 20V Brushless 4.5-Inch Cordless Angle Grinder features a brushless motor designed for longer runtime and increased power efficiency. Similarly, the WORX 20V 4.5-Inch Brushless Angle Grinder also uses a brushless motor. The specifications for both list the same no-load speed of 8,500 RPM. Since the core motor technology and rotational speed are identical, you can expect similar performance levels from both units. The brushless design in both tools promises extended life and better efficiency compared to brushed alternatives. There is no technical difference in the motor itself between these two specific SKUs.

voltage

Edge: Tie

Power source consistency is crucial if you already own WORX tools. Both the WORX 20V Brushless 4.5-Inch Cordless Angle Grinder and the WORX 20V 4.5-Inch Brushless Angle Grinder operate on 20V power. They are part of the WORX Power Share family, meaning they accept the same batteries. This compatibility extends to other 20V, 40V, and 80V tools in the brand's lineup. Whether you choose the kit or the bare tool, you can swap batteries between them and other compatible devices. This shared voltage platform ensures that your existing battery inventory works seamlessly with either grinder you decide to purchase.

safety features

Edge: Tie

Safety mechanisms are critical when operating angle grinders. Both models include anti-kickback technology. This electronic feature detects when the disc jams and automatically shuts down the tool to prevent injury. The presence of this safety system is consistent across both the kit and the bare tool versions. Additionally, both grinders feature an auxiliary handle with two positioning options. This allows you to adjust the grip for better leverage and control depending on the task. The ergonomic handle design is also present in both, offering secure control during use. Since safety and handling features are identical, neither model holds an advantage in this category.

Choose the Right WORX Grinder

First-time owners needing a complete setup

Our pick: WORX 20V Brushless 4.5-Inch Cordless Angle Grinder

This model comes as a full starter kit. You get the grinder, a 2.0 Ah battery, and a charger. The 8,500 RPM brushless motor provides efficient power. Anti-kickback technology shuts down the tool if it jams. The slim 4.2 lb design helps you reach tight spaces easily. You can start working immediately without buying extra items.

Existing WORX users expanding their collection

Our pick: WORX 20V 4.5-Inch Brushless Angle Grinder

This is a bare tool version. It works with your existing 20V Power Share batteries. The 8,500 RPM brushless motor delivers high performance. Anti-kickback safety features protect you during use. The ergonomic handle offers secure control. Since you already own batteries and chargers, this option saves you from buying redundant accessories while giving you the same core tool performance.

Users prioritizing lightweight portability

Our pick: WORX 20V Brushless 4.5-Inch Cordless Angle Grinder

The kit version weighs 4.2 pounds. This lighter weight makes it easier to transport and store. The brushless motor extends runtime and tool life. Anti-kickback technology adds safety during operation. The slim body fits into tighter spaces. You get the full package with a battery and charger, making it a practical choice for those who value manageable weight and immediate usability.

The products compared

WORX 20V Brushless 4.5-Inch Cordless Angle Grinder

Best for: Light cutting and grinding tasks

Power Source
Cordless, 20V
Wheel Diameter
4.5 in.
Motor Type
Brushless
No-Load Speed
8500 RPM
Battery Included
Yes (kit)
Safety Features
Anti-kickback protection

View on Amazon: WORX 20V Brushless 4.5-Inch Cordless Angle Grinder Affiliate link

This WORX WX812L is a cordless 20V brushless angle grinder with a 4.5-inch disc capacity. It runs at 8,500 RPM and weighs 4.2 pounds. The brushless motor offers extended runtime and power. Anti-kickback technology shuts down the tool during jams. It includes a 2.0 Ah battery and charger. The slim design fits tight spaces. It suits users needing portable cutting or grinding power.

Pros

  • Brushless motor for longer runtime and efficiency
  • Anti-kickback electronic safety shutdown
  • Lightweight 4.2-pound slim design
  • 8,500 RPM no-load speed
  • Compatible with all WORX 20V batteries

Cons

  • Included 2.0 Ah battery has limited runtime
  • No variable speed trigger
  • Single auxiliary handle position

Good fit if

  • You need a lightweight tool for overhead work
  • You already own WORX 20V batteries
  • You require anti-kickback safety features

Skip if

  • You need high-capacity batteries for long jobs
  • You require variable speed control
  • You need a more powerful 40V system

Verdict: WORX 20V Brushless 4.5" Angle Grinder fits DIYers who value portability and safety over raw power. It is ideal for light cutting tasks where battery compatibility with other WORX tools matters.

WORX 20V 4.5-Inch Brushless Angle Grinder

Best for: Existing WORX 20V battery owners

Power Source
Cordless (20V)
Wheel Diameter
4.5"
Motor Type
Brushless
No-Load Speed
8500 RPM
Battery Included
No (bare tool)
Safety Features
Anti-kickback

View on Amazon: WORX 20V 4.5-Inch Brushless Angle Grinder Affiliate link

This is a 20V cordless angle grinder with a 4.5-inch disc capacity. It features a brushless motor for 50% longer run time and 25% more power. The no-load speed reaches 8,500 RPM. It includes anti-kickback technology and a slim design for tight spaces. You get the tool only, without a battery. It fits into the WORX Power Share ecosystem for expanded compatibility.

Pros

  • Brushless motor delivers 25% more power
  • 8,500 RPM no-load speed
  • Anti-kickback safety technology
  • Slim design fits tight spaces

Cons

  • Sold as a bare tool without battery
  • Heavier at 5.71 pounds
  • No variable speed control listed

Good fit if

  • You already own WORX 20V batteries
  • You need a slim profile for tight spaces
  • You want anti-kickback safety features

Skip if

  • You need a battery included in the box
  • You require variable speed settings
  • You prefer a lighter tool under 5 pounds

Verdict: WORX 20V Brushless 4.5" Grinder is a solid choice for users who already have 20V batteries and need a durable tool with anti-kickback protection for general grinding tasks.

Specifications side by side

Spec WORX 20V Brushless 4.5-Inch Cordless Angle Grinder WORX 20V 4.5-Inch Brushless Angle Grinder
Power Source Cordless, 20V Cordless (20V)
Wheel Diameter 4.5 in. 4.5"
Motor Type Brushless Brushless
No-Load Speed 8500 RPM 8500 RPM
Battery Included Yes (kit) No (bare tool)
Safety Features Anti-kickback protection Anti-kickback
Included Accessories Battery, charger, handle, disc, wrench aux handle, spanner, carry bag
Voltage 20V 20V
Included Tools Grinder Grinder
Dimensions 5.25 × 5 × 14 inches 5 × 5 × 13 inches
Weight 4.2 pounds 5.71 pounds
Size No Size not stated
Color Black/Orange Grey,black
Model WX812L WX812L.9

Frequently asked questions

Which WORX grinder is lighter?

The model WX812L is lighter at 4.2 pounds. The WX812L.9 version weighs 5.71 pounds. You should choose the lighter unit if you need to hold the tool overhead for long periods. The reduced weight helps reduce arm fatigue during extended use.

Do these models use the same batteries?

Yes, both tools operate on the WORX 20V platform. The WX812L kit includes a 2.0 Ah battery and charger. The WX812L.9 is sold as a bare tool. You can use your existing WORX 20V batteries with either grinder.

Which model is better for DIYers?

The WX812L is ideal for DIYers who value portability. It includes everything you need to start working immediately. The complete kit provides the grinder, battery, and charger. This makes it a convenient choice for light cutting and grinding tasks around the home.

Is the motor type the same?

Both grinders feature a brushless motor. This design offers efficient power and longer runtime compared to brushed motors. You get consistent performance and reduced maintenance needs. The brushless technology is a shared benefit across both the WX812L and WX812L.9 models.

What are the dimensions of the grinders?

The WX812L measures 14 inches in height and 5.25 inches in length. The WX812L.9 is slightly shorter at 13 inches high and 5 inches long. Both have a width of 5 inches. These compact sizes allow for easy storage in tight spaces.

Does the WX812L.9 come with a battery?

No, the WX812L.9 is sold as a bare tool. It does not include a battery or charger in the box. You must purchase these separately. This option is best for users who already own compatible WORX 20V batteries and want to save space.

Which model has anti-kickback protection?

Both the WX812L and WX812L.9 include anti-kickback technology. This feature helps shut down the tool if it binds or kicks back. It provides an added layer of safety during grinding operations. You can rely on this safety mechanism for both models.

See also