General
Model
DCD771C2
DC970K-2
LI2000
Manufacturer
Dewalt
DEWALT
BLACK+DECKER
Amazon rating
4.6
4.6
4.2
Customer reviews on Amazon
2622
3886
1389
Product Features
Chuck Size
1/2 inches
1/2 inches
3/4 inches
Chuck Type
Keyless
Keyless
Keyless
System
20V Max
18V Max
3.6V Max
Style
Drill
Drill/driver
Screwdriver
Cutting
Minimum Cut
6 mm
1 inches
Maximum Cut
19 mm
2 inches
8 inches
Max Capacity in Metal
1/2 mm
1 inches
Max Capacity in Wood
19 mm
1 inches
1/2 inches
Max Capacity in Masonry
10 mm
2 inches
Power
Power Source
Battery-Powered
Cordless-electric
Battery-Powered
Batteries Included
Batteries Required
Battery Cell Type
Lithium Ion
NiCAD
Lithium Ion
Voltage
20 V
18V
3.6V
Wattage
300 W
380W
710W
Average Battery Life
13.2 hours
1 hours
2 hours
Spesifications
No Load Speed
0-450/0-1,500 RPM
1750 RPM
180 RPM
Max Torque
300 inches
450 inches
1375 inches
Torque Settings
16
Number of Handles
1
1
1
BPM
250
8500
1650
Noise Sound
Noise Sound pressure
70 dB
87 dB
94 dB
Noise Sound power
110 dB
98 dB
Vibration
Drilling
2.5 m/s?
1.5 m/sec?
2.5 m/s?
K factor
1.5 m/sec?
1.5 m/sec?
Hammer Drilling
15 m/s?
1.5 m/sec?
Special Features
Lightweight
LED Worklight
Always Ready
Dimensions
Size
13.9 x 9.9 x 4.2 inches
14.8 x 13.5 x 4.7 inches
7.7 x 2.9 x 9.5 inches
Weight
3.6 pounds
4.7 pounds
1.2 pounds