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  • Update date: November 30, 2024

Dewalt DCD791N vs DCD777M2T-QW

Recommended drill

Dewalt DCD791N

Dewalt DCD791N

Recommended price : 114$

The DEWALT DCD791N cordless drill driver is a compact and powerful tool, ideal for professionals and demanding DIY enthusiasts. Powered by an 18V XR Li-Ion battery (not included), it features a brushless motor for enhanced efficiency and extended durability.

This drill offers two variable speeds: 0-550 RPM and 0-2000 RPM, making it adaptable for various applications. Its maximum torque of 70 Nm ensures ample power for drilling and screwing into different materials. The 13 mm all-metal chuck provides excellent bit and drill retention.

Ergonomics have been carefully designed with an improved grip handle for optimal comfort during use. Additionally, a belt clip and magnetic bit holder are included for easy transport and access to bits. The DCD791N also features an integrated LED light, providing better visibility in poorly lit work areas.

Compact and lightweight, with a net weight of 1.1 kg, this drill driver is built for efficient operation in tight spaces. It is compatible with the entire DEWALT XR 18V battery and charger range, offering great flexibility for users already equipped with this platform.
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Dewalt DCD777M2T-QW

Dewalt DCD777M2T-QW

Recommended price : 199$

The compact DEWALT DCD777M2T-QW drill-driver, equipped with a brushless motor, delivers 340 W of power and a maximum torque of 65 Nm, ensuring high performance for various drilling and fastening applications.

Powered by an 18V 4.0 Ah Li-Ion battery, it offers extended runtime, ideal for intensive tasks. Its lightweight and ergonomic design, with a length of 192 mm and a weight of 1.5 kg, makes it easy to use even in tight spaces.

The 13 mm keyless chuck allows for quick accessory changes, while the two variable speeds (0-500 and 0-1750 RPM) provide optimal control depending on the material being worked on.

Additionally, the integrated LED light enhances visibility in dark areas, making this drill-driver a versatile tool suitable for both professionals and demanding DIY enthusiasts.
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Dewalt DCD777M2T-QW vs Dewalt DCD791N
Which to choose and why?

Why choose Dewalt DCD791N?

Better ergonomics in tight spaces

Dimensions : 174×67×203 mm vs. 192×67×198 mm

Provides excellent value for its performance

Recommended price : 114$ vs. 199$

Higher torque, providing more power for hard materials

Max torque: rigid/elastic fastening : 70 Nm vs. 65 Nm

Higher speed, enabling faster and more efficient drilling

Max no-load speed : 2 000 min⁻¹ vs. 1 750 min⁻¹

Offers better drilling capacity in hard materials

Power : 460 W vs. 340 W

Amazon offer

Why choose Dewalt DCD777M2T-QW?

Adapts to various materials without the risk of over-tightening

Clutch torque adjustment : 16 vs. 15

Quieter, for more comfortable and less tiring use

Sound power level (L wa) : 83 dB(A) vs. 88 dB(A)

Amazon offer

Technical specifications
Dewalt DCD791N vs Dewalt DCD777M2T-QW

General

Specifications Dewalt DCD791N Dewalt DCD777M2T-QW
Drill type Drill driver VS Drill driver
Dimensions 174 x 67 x 203 mm VS 192 x 67 x 198 mm
Weight (kg) 1.1 kg VS 1.1 kg
Color Yellow / Black VS Yellow / Black
Recommended price 114$ VS 199$
Warranty 3 years VS 3 years

Technical specifications

Specifications Dewalt DCD791N Dewalt DCD777M2T-QW
Max torque: rigid/elastic fastening 70 Nm VS 65 Nm
Clutch torque adjustment 15 VS 16
Cadence - VS -
Capacity: wood screws - VS -
Capacity: machine screws - VS -
Max no-load speed 0 - 2 000 min⁻¹ VS 0 - 1 750 min⁻¹
Reversal Yes VS Yes
Work light Yes VS Yes
Keyless chuck Yes VS Yes

Power supply and operation

Specifications Dewalt DCD791N Dewalt DCD777M2T-QW
Power supply Battery VS Battery
Power cord - VS -
Power 460 W VS 340 W
Electrical voltage 18 V VS 18 V
Variable speed Yes VS Yes

Sound specifications

Specifications Dewalt DCD791N Dewalt DCD777M2T-QW
Sound power level 88 dB(A) VS 83 dB(A)
Sound pressure level 77 dB(A) VS 72 dB(A)
Noise uncertainty (K factor) 3 dB(A) VS 3 dB(A)

Vibration specifications

Specifications Dewalt DCD791N Dewalt DCD777M2T-QW
Vibration level 2.5 m/s2 VS 2.5 m/s2
Vibration k-factor 1.5 m/s2 VS 1.5 m/s2

Recommended accessories

For the Dewalt DCD791N

Dewalt XR 18V Battery DCB182-XJ

Dewalt XR 18V Battery DCB182-XJ

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DEWALT DT71563-QZ Drill and Bit Set

DEWALT DT71563-QZ Drill and Bit Set

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DEWALT DCB115 Charger

DEWALT DCB115 Charger

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For the Dewalt DCD777M2T-QW

Assorted 43-piece torsion screwdriver bit set DEXTER PRO

Assorted 43-piece torsion screwdriver bit set DEXTER PRO

Read more
7-piece wood twist drill bit set BOSCH PROFESSIONAL

7-piece wood twist drill bit set BOSCH PROFESSIONAL

Read more
DEWALT DT71563-QZ Drill and Bit Set

DEWALT DT71563-QZ Drill and Bit Set

Read more

I'm Quentin, a tool expert with over 10 years of experience. On this blog, I share reliable, tested and proven advice based on extensive practice and ongoing collaboration with tool manufacturers.

Auteur Quentin Versus Tools

Detailed comparison by Quentin

This comparison may contain affiliate links. We may earn a small commission if you choose to purchase your drill through our links. If you found this page helpful, it’s a way to support our work. Thank you!

Sources : Dewalt DCD777M2T-QW

Frequently asked questions

General

Drill type

Different types of drills (hammer drill, screwdriver, etc.) are designed for specific tasks. The right type of drill optimizes performance based on specific needs.
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Dimensions

The drill's dimensions affect maneuverability, especially in tight spaces. A more compact drill is easier to handle in narrow areas.
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Weight (kg)

Weight affects user fatigue during extended use. A lighter drill is more comfortable for long sessions.
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Warranty

The warranty ensures the tool's durability and reliability. A longer warranty provides more security in case of issues with the drill.
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Technical specifications

Max torque: rigid/elastic fastening

Allows control of applied force to avoid damaging materials or screws. More settings provide better control and precision across various materials.
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Clutch torque adjustment

Allows control of applied force to avoid damaging materials or screws. More settings provide better control and precision across various materials.
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Cadence

Indicates the drill's capacity to bore large-diameter holes in wood. A larger diameter allows for working with thicker or wider wooden pieces.
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Capacity

The hammering capacity indicates the size of bolts or fasteners the drill can handle. Greater capacity allows working with sturdier bolts, essential in construction or industrial settings.
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Capacity: wood screws

Greater capacity for wood screws allows working on projects with larger or longer screws, thereby increasing joint strength.
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Capacity: machine screws

Greater capacity for machine screws is essential in projects requiring robust and precise fastenings, especially in metal or plastic.
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Max no-load speed

The no-load speed indicates the maximum rotation speed of the bit, influencing drilling speed. Higher speed allows faster drilling, especially in softer materials.
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Reversal

Allows changing the rotation direction to screw or unscrew easily. Reversal offers more flexibility, especially for screwing and unscrewing.
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Work light

Lights up the work area, improving precision in dark environments. An integrated light allows for precise work in dimly lit spaces.
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Keyless chuck

Enables quick bit changes without additional tools. The keyless chuck saves time and enhances convenience.
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Power supply and operation

Power supply

Determines if the drill is corded or cordless, which affects mobility and power. A corded drill provides more constant power, while a cordless one offers more freedom.
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Power cord

Cord length affects freedom of movement when using a corded drill. A longer cord allows work without needing an extension.
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Power

Power determines the drill's ability to bore through hard materials. More power enables faster and more efficient work in tough materials.
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Electrical voltage

Indicates the power and runtime of a cordless drill. Higher voltage provides more power and runtime for extended sessions.
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Variable speed

Allows speed adjustment based on the material for better control. Variable speed enables adaptation to different materials and task types.
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Sound specifications

Sound power level

Noise level affects user comfort, especially during prolonged use. A lower noise level is more comfortable and reduces hearing fatigue.
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Sound pressure level

Indicates the noise level perceived by the user while operating the tool. Lower sound pressure levels make operation more comfortable and less tiring.
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Noise uncertainty (K factor)

Indicates the accuracy of reported noise measurements. A lower uncertainty means that noise levels are closer to actual values.
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Vibration specifications

Vibration level

Vibrations impact comfort and safety during drill use. Lower vibrations reduce fatigue and the risk of musculoskeletal disorders.
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Vibration k-factor

Measures the accuracy of reported vibration values. A lower uncertainty guarantees a better evaluation of the felt vibrations.
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