Our choice
Compare DCD771C2
Our choice
Compare DCD791D2
Our choice
Compare DS18DGL

General

Model

DCD771C2
DCD791D2
DS18DGL

Manufacturer

Dewalt
DEWALT
Hitachi

Amazon rating

4.6
4.8
4.4

Customer reviews on Amazon

2809
204
219

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
2 inches

Max Capacity in Metal

1/2 mm
13 inches
1/2 inches

Max Capacity in Wood

19 mm
40 inches

Max Capacity in Masonry

10 mm
13 inches
5/8 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
1W

Average Battery Life

13.2 hours
1.5 hours
1.5 hours

Spesifications

No Load Speed

0-450/0-1,500 RPM
2000 RPM
2600 RPM

Max Torque

300 inches
240 inches
400 inches

Torque Settings

16
15
22

Number of Handles

1
1
1

BPM

250
250
3200

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/sec? 

K factor

1.5 m/sec?
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
8.5 x 3.1 x 8.9 inches

Weight

3.6 pounds
3.5 pounds
3.7 pounds