Our choice
Compare DCD771C2
Our choice
Compare DCD791D2

General

Model

DCD771C2
DCD791D2
DDB181-02

Manufacturer

Dewalt
DEWALT
Bosch

Amazon rating

4.6
4.8
4.4

Customer reviews on Amazon

2809
204
370

Product Features

Chuck Size

1/2 inches
1/2 inches
1/2 inches

Chuck Type

Keyless
Brushless
Keyless

System

20V Max
20V Max
18V Max

Style

Drill
Drill/driver
Drill/driver

Cutting

Minimum Cut

6 mm
1 inches

Maximum Cut

19 mm
1 inches
3 inches

Max Capacity in Metal

1/2 mm
13 inches
3/8 inches

Max Capacity in Wood

19 mm
40 inches
1/2 inches

Max Capacity in Masonry

10 mm
13 inches
1/2 inches

Power

Power Source

Battery-Powered
Battery-Powered
Battery

Batteries Included

Batteries Required

Battery Cell Type

Lithium Ion
Lithium Ion
Lithium Ion

Voltage

20 V
20V
18V

Wattage

300 W
460W
36W

Average Battery Life

13.2 hours
1.5 hours
4 hours

Spesifications

No Load Speed

0-450/0-1,500 RPM
2000 RPM
1300 RPM

Max Torque

300 inches
240 inches
350 inches

Torque Settings

16
15
21

Number of Handles

1
1
1

BPM

250
250
28500

Noise Sound

Noise Sound pressure

70 dB
90 dB

Noise Sound power

110 dB
101 dB

Vibration

Drilling

2.5 m/s?
2.5 m/s?
2.5 m/s?

K factor

1.5 m/sec?
1.5 m/sec?

Hammer Drilling

15 m/s?
11.5 m/s?

Special Features

Lightweight

LED Worklight

Always Ready

Dimensions

Size

13.9 x 9.9 x 4.2 inches
16.2 x 4.5 x 10.1 inches
14 x 3.5 x 11 inches

Weight

3.6 pounds
3.5 pounds
6.6 pounds