DEWALT 20V MAX* Angle Grinder vs DEWALT 20V MAX* XR Angle (2026): Key Differences
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You are comparing the dewalt 20v max angle grinder vs 20v max xr angle models. Both tools share a brushless motor, a 4-1/2-inch wheel diameter, and a 20V MAX power source. They also include a kickback brake that stops the wheel in two seconds or less. The main difference lies in the switch type. One uses a paddle switch, while the other uses a slide switch. This change affects how you operate the tool during use.
Key differences
| Aspect | DEWALT 20V MAX 4-1/2-Inch Brushless Paddle Grinder | DEWALT 20V 4-1/2-Inch Slide-Switch Grinder |
|---|---|---|
| Switch Type | Paddle | Slide |
| Model Number | DCG413B | DCG405B |
| Length | 12.2 inches | 12.9 inches |
| Height | 6 inches | 4.9 inches |
| Safety Features | E-Switch Protection | Power Loss Reset |
| Included Accessories | Not listed | Side handle, hex key, flanges, guard |
Which one should you choose?
Choose DEWALT 20V MAX 4-1/2-Inch Brushless Paddle Grinder if
- You prefer a paddle switch for easier one-handed operation.
- You want a slightly shorter and taller tool profile.
- You need E-Switch Protection against accidental restarts.
Choose DEWALT 20V 4-1/2-Inch Slide-Switch Grinder if
- You prefer a slide switch for precise control.
- You want a longer body for better balance.
- You need a side handle and flanges included in the box.
Verdict: Choose the paddle switch model if you prioritize compact height and quick trigger access. Choose the slide switch model if you prefer a longer body and want essential accessories included. Both tools offer identical motor performance and safety braking.
DEWALT 20V Angle Grinder Comparison
Switch Type
Product A uses a paddle switch that requires two distinct actions to activate the tool. This two-stage trigger design helps prevent accidental starts while you are positioning the grinder. Product B features a slide switch instead. The slide switch allows for a more traditional on-off toggle action. Some users prefer the paddle for its safety lockout, while others find the slide switch faster for repetitive cuts. Your choice depends on whether you value the extra safety step or the quicker engagement speed. Both switches operate the brushless motor effectively, but the physical interaction with the tool differs significantly between these two models.
Included Accessories
Product B comes with a more complete accessory package right out of the box. It includes a side handle, a hex key, and the necessary inner and outer flanges for mounting the wheel. It also provides a specific 4.5-inch type 27 guard. Product A is listed as a tool-only unit. The data does not confirm if it includes any side handles or flanges. If you need a side handle for stability during grinding, Product B saves you from purchasing it separately. You will likely need to buy those accessories separately if you choose Product A. This makes Product B more ready-to-use immediately for standard grinding tasks.
Safety Features
Both grinders feature a kickback brake that engages when a pinch, stall, or bind-up event is sensed. This electronic brake stops the wheel quickly to reduce movement and shut the tool off. Product B also includes a Power Loss Reset feature. This prevents accidental restarts if the tool is left on during a power disruption. Product A has E-Switch Protection, which requires you to cycle the trigger off and on after a power outage. Both systems enhance safety, but the Power Loss Reset on Product B offers an extra layer of protection against unexpected restarts. This is a useful feature if you work in environments with unstable power sources.
Weight and Balance
Both tools weigh exactly 3.75 pounds. This identical weight means neither tool has a significant advantage in terms of raw mass. However, the distribution of that weight may differ due to the internal switch mechanisms and accessory inclusions. Product B includes a side handle and guard, which might slightly alter the balance point when fully assembled. Product A is lighter without those extras. For prolonged overhead use, the identical bare tool weight is neutral. You will need to test the balance with your preferred battery to determine which feels more stable in your hand. The data shows no weight difference in the tool body itself.
Dimensions
The physical footprint of these grinders varies slightly. Product A measures 12.2 inches in length and 4.7 inches in width. Product B is slightly longer at 12.9 inches but narrower at 1 inch in width. The height of Product A is 6 inches, while Product B is 4.9 inches tall. These differences may affect how the tool fits into tight spaces or storage compartments. Product B’s narrower profile might slip into tighter gaps, while Product A’s shorter length could be easier to manage in confined areas. Neither dimension is universally better. Your workspace constraints will dictate which size is more practical for your specific grinding needs.
Which DEWALT Grinder Suits Your Job
Users preferring traditional two-hand control
Product B uses a slide switch. This design allows you to lock the trigger in the on position. You can control the tool with one hand while guiding the workpiece with the other. This is useful for extended grinding tasks where constant trigger pressure causes fatigue. The side handle provides additional stability during heavy use.
Professionals needing quick accidental-start prevention
Product A features a paddle switch with a two-stage trigger. You must perform two distinct actions to activate the motor. This design significantly reduces the risk of accidental startup if the tool is bumped against your body or a surface. The paddle shape also allows you to release power instantly by simply letting go of the grip.
Those valuing compact tool storage
Product A measures 12.2 inches in length. Product B measures 12.9 inches. The slightly shorter body of Product A may fit more easily into tight storage spaces or smaller tool bags. Both weigh 3.75 pounds, so weight is not a differentiator. The reduced length is the primary advantage for organization and transport efficiency in crowded work areas.
Users prioritizing safety after power loss
Product B includes a Power Loss Reset feature. If power is interrupted, the tool will not restart automatically when power returns. This prevents unexpected startup. Product A has E-Switch Protection but requires you to cycle the switch manually. Product B's automatic reset is a distinct safety advantage for environments where sudden restarts pose a hazard.
The products compared
DEWALT 20V MAX 4-1/2-Inch Brushless Paddle Grinder
Best for: users with existing 20V batteries
- Power Source
- 20V MAX cordless
- Wheel Diameter
- 4-1/2 in.
- Motor Type
- Brushless
- Switch Type
- Paddle
- Battery Included
- No (tool only)
- Included Tools
- Grinder
View on Amazon: DEWALT 20V MAX 4-1/2-Inch Brushless Paddle Grinder Affiliate link
This DEWALT 20V MAX cordless angle grinder features a 4-1/2 inch wheel diameter and a brushless motor. It includes a paddle switch and kickback brake for safety. The tool weighs 3.75 pounds and measures 12.2 inches long. It is sold as a bare tool without a battery. This model suits users who need a reliable, lightweight grinder for general cutting and grinding tasks.
Pros
- Brushless motor requires no brush changes
- Kickback brake stops wheel in 2 seconds or less
- Paddle switch design for easy control
- Lightweight at 3.75 pounds
Cons
- Sold as a bare tool without battery
- Two-stage trigger requires two actions
- No variable speed control listed
Good fit if
- You already own DEWALT 20V batteries
- You prefer a paddle switch layout
- You need a lightweight grinder for overhead work
Skip if
- You need a grinder with a variable speed trigger
- You want a complete kit with battery and charger
- You require a larger 5-inch or larger wheel
Verdict: DEWALT 20V MAX 4.5-Inch Brushless Grinder offers a compact, brushless solution for users with existing 20V batteries who prioritize safety features like the kickback brake and a paddle switch.
DEWALT 20V 4-1/2-Inch Slide-Switch Grinder
Best for: Existing DEWALT 20V users needing safety features
- Wheel Diameter
- 4-1/2 in.
- Motor Type
- Brushless
- Switch Type
- Slide
- Battery Included
- No (bare tool)
- Safety Features
- Kickback Brake; Power Loss Reset
- Voltage
- 20V
View on Amazon: DEWALT 20V 4-1/2-Inch Slide-Switch Grinder Affiliate link
This bare-tool angle grinder uses a brushless motor for efficient power. It features a 4-1/2-inch wheel diameter and a slide switch for control. The kickback brake stops the wheel in two seconds or less to enhance safety. The power loss reset prevents accidental restarts after a power disruption. You get a side handle and flanges included. It requires a separate 20V MAX battery.
Pros
- Brushless motor requires no brush changes
- Kickback brake engages in 2 seconds or less
- Power loss reset prevents accidental restarts
- Includes side handle and flanges
Cons
- Sold as a bare tool without battery
- Heavier at 3.75 pounds
- No keyless chuck for quick wheel changes
Good fit if
- You already own DEWALT 20V MAX batteries
- You need kickback protection for binding materials
- You prefer a slide switch for one-handed operation
Skip if
- You want a complete kit with a battery and charger
- You need a lighter tool for overhead work
- You require a keyless chuck for faster changes
Verdict: DEWALT 20V MAX XR 4.5 In Angle Grinder fits users who already have 20V batteries and want a durable tool with strong safety features like the kickback brake. It is not ideal for those needing a lighter weight or a complete kit out of the box.
Specifications side by side
| Spec | DEWALT 20V MAX 4-1/2-Inch Brushless Paddle Grinder | DEWALT 20V 4-1/2-Inch Slide-Switch Grinder |
|---|---|---|
| Power Source | 20V MAX cordless | not stated |
| Wheel Diameter | 4-1/2 in. | 4-1/2 in. |
| Motor Type | Brushless | Brushless |
| Switch Type | Paddle | Slide |
| Battery Included | No (tool only) | No (bare tool) |
| Safety Features | not stated | Kickback Brake; Power Loss Reset |
| Voltage | 20V | 20V |
| Included Tools | Grinder | Grinder |
| Chuck Size | 1/2 Inch | 1/2 Inch |
| Dimensions | 12.2 × 4.7 × 6 inches | 12.9 × 1 × 4.9 inches |
| Weight | 3.75 pounds | 3.75 pounds |
| Size | Pack of 1 | One Size |
| Color | Multi | Multi |
| Model | DCG413B | DCG405B |
Frequently asked questions
Is the DEWALT 20V MAX angle grinder brushless?
Yes, the DEWALT 20V MAX 4.5-Inch Brushless Grinder features a brushless motor. This design typically offers longer runtime and increased durability compared to brushed motors. It is a bare tool, meaning you must supply your own 20V MAX battery to operate it.
What is the weight of the DEWALT DCG413B grinder?
The DEWALT DCG413B weighs 3.75 pounds. This weight includes the bare tool without a battery attached. The compact dimensions are 12.2 inches in length, 4.7 inches in width, and 6 inches in height, making it manageable for overhead or tight-space work.
Does the DEWALT 20V MAX XR grinder come with a battery?
No, the DEWALT 20V MAX XR 4.5-Inch Angle Grinder is sold as a bare tool. It does not include a battery or charger. You need to use an existing DEWALT 20V MAX battery to power this model, which shares the same platform as other tools in the series.
What switch type does the DEWALT DCG405B use?
The DEWALT DCG405B uses a slide switch. This allows you to lock the trigger in the on position for continuous operation. You can control the tool with one hand while guiding the workpiece with the other, offering a different ergonomic approach than paddle switches.
Are both grinders compatible with 4-1/2 inch wheels?
Yes, both models accept 4-1/2-inch wheels. The DEWALT DCG413B and DCG405B both feature a 1/2-inch chuck size designed for standard 4-1/2-inch grinding or cutting discs. This ensures you can use common abrasive accessories found in most workshops for various material cutting and grinding tasks.
Which grinder is better for users with existing batteries?
Both models are ideal for users with existing 20V MAX batteries. The DEWALT DCG413B offers a paddle switch for safety, while the DCG405B provides a slide switch for one-handed operation. Since both are bare tools, they leverage your current battery inventory without requiring new power sources.
What is the model number for the brushless paddle switch grinder?
The model number for the brushless grinder with a paddle switch is DCG413B. This tool features a brushless motor and a paddle switch that requires two distinct actions to activate. It is designed for users who prioritize safety features and compact handling in a 20V system.