DeWalt 771 vs. 791: Which is Better?

When it comes to power tools, DeWalt is a name that stands out for its quality and performance. If you’re in the market for a new DeWalt cordless drill, you might be torn between the DeWalt DCD771 and the DeWalt DCD791. Both are excellent choices, but they have some key differences that can make one a better fit for your needs.

here’s a comparison table summarizing the key differences between the DeWalt DCD771 and DCD791 cordless drills:

FeatureDeWalt DCD771DeWalt DCD791
Power and Performance300-watt motor460-watt motor
Size and WeightSlightly bulkier (3.6 lbs)More compact (3.4 lbs)
Battery Compatibility20V MAX lithium-ion batteries20V MAX lithium-ion batteries
PriceBudget-friendlySlightly higher price
LED Work LightsSingle LED above triggerThree LEDs in a circular pattern
Chuck DesignStandard 1/2-inch ratcheting chuckEnhanced chuck with carbide insert
Speed Settings2-speed settings (0-450 RPM, 0-1500 RPM)3-speed settings (0-550 RPM, 0-2000 RPM, 0-2250 RPM)
WarrantyTypically 3-year limited warrantyTypically 3-year limited warranty
Accessories and BundlesAvailable in various bundlesAvailable in various bundles

1. Power and Performance

DeWalt DCD771: This model features a powerful 300-watt motor, which is perfect for most drilling and fastening tasks around the house. It can handle tasks like drilling into wood, plastic, and even some light-duty metal work with ease.

DeWalt DCD791: The DCD791, on the other hand, boasts a more robust 460-watt motor. This extra power comes in handy when you need to tackle tougher materials like hardwood or thicker metals. It also provides a faster RPM (rotations per minute), making it more efficient for drilling and driving screws.

Example: Imagine you’re building a wooden deck in your backyard. The DCD791 would be the better choice because of its higher power, enabling you to drill through tough hardwood effortlessly.

2. Size and Weight

DeWalt DCD771: The DCD771 is a bit bulkier and heavier compared to the DCD791. It weighs around 3.6 pounds, which is still relatively lightweight for a cordless drill, but it might feel slightly more cumbersome during extended use.

DeWalt DCD791: The DCD791 is designed to be more compact and lightweight, weighing in at approximately 3.4 pounds. This makes it easier to maneuver in tight spaces and reduces user fatigue, especially if you have to work overhead.

Example: If you’re planning to do a lot of overhead drilling or working in confined spaces, the DCD791’s lighter and more compact design will be a significant advantage.

3. Battery Compatibility

DeWalt DCD771: This model uses DeWalt’s 20-volt MAX lithium-ion batteries, which are widely available and compatible with other DeWalt 20V MAX tools. This is convenient if you already own other DeWalt cordless tools.

DeWalt DCD791: The DCD791 is also compatible with the same 20-volt MAX lithium-ion batteries. However, it’s important to note that some variations of this model come with a more advanced XR battery, which provides longer runtime and increased power.

Example: If you have a collection of DeWalt 20V MAX tools, either drill will work seamlessly with your existing batteries. However, if you opt for a DCD791 model with an XR battery, you’ll enjoy extended runtime on a single charge.

4. Price

DeWalt DCD771: Typically, the DCD771 is the more budget-friendly option of the two. It’s a great choice for DIY enthusiasts and homeowners who need a reliable drill without breaking the bank.

DeWalt DCD791: The DCD791, being the more advanced model, comes with a slightly higher price tag. While it offers superior performance, you’ll need to decide if the added cost aligns with your needs and budget.

Example: If you’re a casual DIYer who doesn’t require top-tier performance, the DCD771 is a cost-effective choice. However, if you’re a professional tradesperson or a serious DIY enthusiast, the enhanced features of the DCD791 may justify the higher investment.

5. LED Work Lights

DeWalt DCD771: This model comes equipped with a single LED work light positioned just above the trigger. While it’s sufficient for illuminating your workspace in most situations, it may cast some shadows in tight corners or awkward angles.

DeWalt DCD791: The DCD791 features three LED work lights arranged in a circular pattern around the chuck. This provides a much more evenly distributed and brighter illumination, making it easier to work in challenging conditions, such as low-light areas or tight spaces.

Example: Imagine you’re working in a dimly lit attic space or a cabinet where visibility is limited. The DCD791’s superior LED arrangement ensures you can see your work clearly without shadows.

6. Chuck Design

DeWalt DCD771: This model comes with a standard 1/2-inch ratcheting chuck, which is compatible with a wide range of drill bits and accessories. It’s reliable and easy to use for most drilling tasks.

DeWalt DCD791: The DCD791 also features a 1/2-inch metal ratcheting chuck but with added features. It has a carbide insert to grip the bits more securely and reduce slipping during high-torque applications. This design enhances the overall durability of the chuck.

Example: If you frequently switch between different drill bits and need a chuck that can handle high-torque scenarios, the DCD791’s chuck design offers superior performance.

7. Speed Settings

DeWalt DCD771: This model has two-speed settings: 0-450 RPM (revolutions per minute) for low speed and 0-1,500 RPM for high speed. These settings provide versatility for various drilling and driving tasks.

DeWalt DCD791: The DCD791 offers a wider range of speed settings with a three-speed transmission: 0-550 RPM, 0-2,000 RPM, and 0-2,250 RPM. The additional speed option allows for more precise control over the tool’s performance, especially when working with different materials.

Example: Suppose you’re working on a project that requires a delicate touch, such as driving small screws into wood. The DCD791’s extra speed setting options enable you to fine-tune the tool’s performance for better results.

8. Warranty

DeWalt DCD771: Typically, DeWalt offers a 3-year limited warranty for the DCD771. This warranty covers any defects in material or workmanship and provides peace of mind for your purchase.

DeWalt DCD791: The DCD791 often comes with a 3-year limited warranty as well. However, it’s essential to check the specific warranty terms and conditions with the retailer, as they may vary.

Example: When investing in a power tool, a reliable warranty can be a significant factor. Both models offer a generous warranty, ensuring you’re covered in case of any unforeseen issues.

9. Accessories and Bundles

DeWalt DCD771: You can often find the DCD771 available in various bundles that may include extra batteries, drill bits, or carrying cases. These bundles can provide added value to your purchase.

DeWalt DCD791: Similar to the DCD771, the DCD791 is also available in bundles, and you may have access to more extensive options. Depending on your needs, these bundles can be a cost-effective way to acquire additional accessories.

Example: If you’re starting from scratch and need a complete set of accessories, opting for a bundle can save you money in the long run.

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