Comparative Analysis: Dewalt DCD771C2 vs. DCD791D2 Drills

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Written By John Gibbs

 

 

 

» Power Tools » Drill » Power Drills Comparisons » Dewalt Drills Comparison » Comparative Analysis: Dewalt DCD771C2 vs. DCD791D2 Drills

Overview of DCD771C2

The DCD771C2 is a high-performance drill designed with a compact, lightweight architecture, making it perfect for working in tight spaces for extended periods. This 20V max Lithium Ion Compact Cordless Power Drill/Driver Kit is all about power and convenience, boasting a high performance motor that delivers 300 unit watts out (UWO) of power ability, making it capable of completing a wide range of applications.

Features:

  • Compact, lightweight design: The drill is designed to fit into tight areas, making it ideal for a variety of jobs.
  • High performance motor: The motor can deliver 300 UWO of power, allowing it to handle a wide range of applications.
  • High speed transmission: The drill offers two speeds (0-450 & 1,500 rpm) suitable for a range of fastening and drilling applications.
  • 1/2″ single sleeve ratcheting chuck: This feature provides tight bit gripping strength.
  • Ergonomic handle: The handle is designed for comfort and control.
  • NEW 18V XR Li-Ion compact drill driver featuring XR 1.3Ah Li-Ion battery technology: This technology powers the drill and ensures its high performance.

Includes:

  • (1) DCD771 1/2″ Drill Driver
  • (2) 20V Max* Compact Lithium Ion Battery Packs
  • (1) Compact Charger
  • (1) Contractor Bag
Description
The DCD771C2 20V max Lithium Ion Compact Cordless Power Drill/Driver Kit is designed for completing jobs in tight areas with its lightweight design. The drill comes with a high-performance motor and a 2-speed transmission that delivers up to 300 UWO for a broad range of applications. The kit includes two 20V MAX* batteries, a charger, and a durable storage bag for easy transport.

Overview of DCD791D2

The DCD791D2 is a powerful drill equipped with a DEWALT brushless motor, which provides up to 57% more run time compared to brushed motors. It is a 20V MAX* XR Li-Ion Brushless Compact Cordless Drill known for its ergonomic design, enhanced run time, and high-speed transmission capabilities. This drill is designed to deliver in challenging spaces, offering a comfortable grip for balance and control.

Features:

  • DEWALT brushless motor: This offers up to 57% more run time over brushed motors.
  • XR® Li-Ion batteries with fuel gauge: These provide 33% more capacity over standard packs.
  • Compact, lightweight design: At 6.9″ from front to back and weighing just 3.4 lbs, this drill fits into tight areas.
  • High-speed transmission: With two speed settings (0-550/0-2,000 RPM), the drill delivers up to 30% faster application speeds.
  • Ergonomic comfort grip handle: This feature ensures ideal balance and tool control.
  • Metal 1/2″ ratcheting chuck: This ensures superior bit gripping strength.
  • 3-Mode LED: This provides lighting in dark or confined spaces up to 20 times brighter than previous model.
  • LED Spotlight Mode: Features 20-minute shutoff function allowing for extended work time in dark or confined spaces.
  • 18V XR Li-Ion compact drill driver featuring 2.0Ah XR Li-Ion battery technology: This technology enhances the performance of the drill.

Includes:

  • (1) DCD791 – 20V MAX* XR® Li-Ion BL Compact Drill / Driver
  • (2) DCB203 – XR® 2.0AH Battery Packs
  • (1) Charger
  • (1) Kit Box
  • (1) Belt Hook
Description
The DCD791D2 20V MAX* XR Li-Ion Brushless Compact Cordless Drill with Battery and Charger Kit is designed for working in tight spaces for extended periods. It features a high-speed transmission that delivers 2-speed variations, allowing users to select the level of performance needed for various applications. The drill includes two 20V MAX* XR® 2Ah batteries, a charger, and a durable kit box for easy transport.
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Summary of Specifications

Specifications DCD771C2 DCD791D2
Chuck size 0.5 in 0.5 in
Clutch Positions 16 15
No Load Speed (RPM) 0-450-1500 0-600 / 0-2000
Weight (Including Battery) 4 lbs N/A
Battery Chemistry XR Li-ion XR Li-ion
Battery Capacity 1.3 Ah 2 Ah
Tool Weight 3.6 lbs N/A
Power Output 300 W 460 W
Uncertainty K1 (Vibration) 1.5 m/s2 1.5 m/s2
Voltage 20 V 20 V
Number of Pieces 1 N/A
Uncertainty K2 (Vibration) 1.5 m/s2 1.5 m/s2
LED light N/A Yes
Battery Type N/A LI-ION
Power N/A 460 W

User reviews of DCD771C2

Summary of Positive Reviews for DCD771C2

  • Users appreciate the ergonomic design of the DeWalt DCD771C2, highlighting its comfort and balance when in use.
  • Many found the drill easy to use, even for those who are inexperienced with power tools, and praised the detailed and understandable instructions that came with it.
  • The DeWalt DCD771C2’s battery life has been commended by users, with multiple reports of batteries holding charge well over extended periods of use.
  • The product has been described as great value for money, with several users delighted by the inclusion of two batteries and a bag in the package.
  • The drill’s power and performance, even on tougher tasks, have been lauded by users, many of whom have used it for a range of home DIY projects.
  • Multiple reviews mention the convenience and usefulness of the built-in light feature, aiding visibility during work.
  • The drill has been praised for its durability and longevity, with users stating it continues to perform well after extended use.
  • Users also appreciated the value they received from the drill package, highlighting the inclusion of two batteries, a charger, and a bag as a beneficial deal.

Summary of Critical Reviews for DCD771C2

  • Several users reported issues with the DeWalt DCD771C2’s durability, with the drill ceasing to function after a period of use despite careful handling.
  • Users have expressed dissatisfaction with the product’s warranty, stating that it doesn’t provide adequate coverage for issues encountered.
  • Some users felt that the drill’s value was not equivalent to its cost, and that its performance did not meet their expectations.
  • There have been complaints about the battery life, with some stating that it’s worse than cheaper drills and that the included batteries drain quickly during use.
  • The absence of drill bits in the package was a point of criticism for some users.
  • A number of users mentioned that the drill runs hot quickly and needs rest after about 10 minutes of use.
  • Disappointment was expressed about the lack of a hard shell case, with users finding the provided bag inadequate for secure storage.
  • Some users reported receiving incomplete packages with missing parts such as the chuck.
  • Users also criticized the weight of the drill, finding it to be heavier than anticipated.

User reviews of DCD791D2

Positive User Reviews Summary for DCD791D2

  • High quality and durable: Users noted this tool as a professional-grade tool, lauding its sturdiness and long-lasting performance.
  • Powerful and efficient: Reviewers appreciated the tool’s powerful brushless motor and its impressive torque output.
  • Compact and easy to handle: The tool is appreciated for its compact size and ease of handling, even for users with less hand strength. The shorter profile of the cordless drill was particularly highlighted.
  • Good battery life: Even though some users have not yet tested the full extent of the battery life, they are satisfied with the efficiency of the lithium batteries and the convenient charge level check feature.
  • Excellent customer service: One user had a positive experience with DeWalt’s customer service, indicating good after-sales service.
  • Useful additional features: The tool’s brake system, bright light, and the locking mechanism of the chuck bit holder received positive mentions.
  • Value for money: Despite the high price tag, users found the tool to be a worthwhile investment, providing quality and performance that justifies the cost.
  • Domestic manufacturing: Some users were particularly pleased to see the tool was made or assembled in the USA, contributing to national employment.

Critical User Reviews Summary for DCD791D2

  • Speed control issues: Some users experienced difficulties with controlling the drill’s speed, describing the control as non-linear, causing screws to be over-driven.
  • Early failure: Several users reported that the drill broke or failed prematurely, within a few months of purchase or after light use. Specific issues included the speed selector breaking and the drive failing.
  • Chuck problems: A common criticism was related to the drill’s keyless chuck. Users reported issues with it gripping the drill bit correctly, it being prone to rust, and it failing or slipping after little use.
  • Clutch stiffness: Some users found the clutch to be too stiff, even on the lowest setting, making delicate tasks difficult.
  • Lack of accessories: Users were disappointed to find that the drill did not include additional accessories such as a bit holder.
  • Insufficient torque: A user noted that the drill lacked the level of torque they required for their tasks.
  • Potential counterfeit: One user questioned the authenticity of the drill, based on its early failure.
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Pros and Cons of the Compared Products

Pros/Cons of DCD771C2

Pros Cons
Users appreciate the ergonomic design. Several users reported issues with durability.
The drill is easy to use for beginners. Users have expressed dissatisfaction with the product’s warranty.
The battery life has been commended by users. Some users felt that the value was not equivalent to its cost.
Great value for money, with inclusion of two batteries and a bag. Complaints about the battery life being worse than cheaper drills.
Powerful performance even on tougher tasks. The absence of drill bits in the package was criticized.
The built-in light feature is convenient and useful. The drill runs hot quickly and needs rest after about 10 minutes of use.
The drill is praised for its durability and longevity. Disappointment about the lack of a hard shell case.
Value received from the package, including two batteries, a charger, and a bag. Some users reported receiving incomplete packages with missing parts such as the chuck.
Users criticized the weight of the drill, finding it to be heavier than anticipated.

Pros/Cons of DCD791D2

Pros Cons
High quality and durable, lauded for its sturdiness and long-lasting performance. Some users experienced difficulties with controlling the drill’s speed.
Powerful brushless motor with impressive torque output. Several users reported that the drill broke or failed prematurely.
Compact size and easy to handle, even for users with less hand strength. Users reported issues with the drill’s keyless chuck.
Good battery life, with efficient lithium batteries and convenient charge level check feature. Some users found the clutch to be too stiff, even on the lowest setting.
Excellent customer service, indicating good after-sales service. Disappointment over the lack of included accessories such as a bit holder.
Useful additional features like the tool’s brake system, bright light, and the locking mechanism of the chuck bit holder. A user noted that the drill lacked the level of torque they required for their tasks.
Value for money, with quality and performance that justifies the cost. One user questioned the authenticity of the drill, based on its early failure.
Some users were pleased that the tool was made or assembled in the USA.

Conclusion

In conclusion, both the DCD771C2 and DCD791D2 are highly capable drills from Dewalt, each offering unique features that cater to different needs. The DCD771C2, with its high performance motor and compact design, is perfect for a wide range of applications, particularly in tight spaces. On the other hand, the DCD791D2, with its brushless motor and high-speed transmission, offers extended run time and faster application speeds. Your final choice should depend on your specific needs, whether it’s power, speed, weight or battery life.

 

About John Gibbs

Hello everyone! My name is John Gibbs. I am 60 years old and have been in the family construction business all my adult life. Construction is not only my profession but also my passion. I know everything about building and repair materials, tools, advanced methods, techniques, and approaches. I will share the same knowledge with you in my articles.

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