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6. COMPARISONS WITH SIMILAR PRODUCTS
6-1. Specification Comparisons (Cordless Impact Driver)
Item
Small screw
Capacity
Ordinary bolt
High-strength bolt
Max. tightening torque
No-load rotation speed
Impact rate
*
Main body weight
Max. tightening torque
No-load rotation speed
Impact rate
Overall length x height
Center height
*
Main body weight
No-load sound pressure level
Tool tip mounting system
Type of switch
Type of motor
Voltage
Current
Type
Nominal capacity
Battery
Nominal voltage
Ambient temperature
Model
Charger
Power input capacity
Recharging voltage
Standard accessories
*
1
: In the case of tapping screws and wood screws, a minimum of M3 (1/8") is possible.
2
*
: Max. tightening torque is based on tightening an M12 (5/32") bolt (strength grade: 12.9) for 3 seconds with a hexagon
socket.
3
*
: Max. tightening torque is based on tightening an M10 (3/8") bolt (strength grade: 12.9) for 3 seconds with a hexagon socket.
*
4
: Main body weight does not include accessory tools (hexagon bit, etc.).
Maker
Model
WH 8DH
M 4 --- M 8
(5/32" --- 5/16")
M 5 --- M 12
(3/16" --- 15/32")
M 5 --- M 10
(3/16" --- 3/8")
N
m
•
(900 kgf
•
/min
0 --- 2,200
/min
0 --- 2,900
4
kg
1.6 (3.5 lbs)
2
*
N
m
•
(930 kgf
cm, 67.3 ft-lbs)*
•
/min
0 --- 2,230
/min
0 --- 2,790
176 x 220
mm
(6-15/16" x 8-21/32")
mm
26 (1-1/64")
4
kg
1.6 (3.5 lbs)
dB(A)
Driver chuck
Trigger switch with
forward / reverse
changeover pushing
button with brake and
variable
DC magnet
V
A
EB 9B or EB 9H
EB 9B: 2.0
Ah
EB 9H: 2.2
V
˚C
UC 14YF2
VA
V
7.2 --- 14.4
•
Plastic tool case
•
Charger (UC 14YF2)
HITACHI
*
1
(3/16" --- 5/16")
(3/16" --- 15/32")
(3/16" --- 3/8")
88.2
2
cm, 65 ft-lbs)*
(800 kgf
91.1
2
(850 kgf
(6-7/8" x 8-19/32")
1.47 (3.2 lbs)
67
Driver chuck
Trigger switch with
forward / reverse
changeover pushing
button with brake
9.6
20
9.6
0 --- 40
44
•
Plastic tool case
•
Charger (UC 12Y)
--- 10 ---
WH 8DA2
M 5 --- M 8
M 5 --- M 12
M 5 --- M 10
78.4
3
cm, 58 ft-lbs)*
(800 kgf
•
2,200
2,800
1.4 (3.1 lbs)
83.8
3
cm, 61 ft-lbs)*
(875 kgf
•
2,150
2,700
175 x 218
(6-47/64" x 9-9/64")
26 (1-1/64")
66
Variable speed switch with
forward/reverse
changeover lever
DC magnet
9.6
20
EB 9
1.3
9.6
5 --- 40
UC 12Y
51
2.4 --- 12
•
Plastic tool case
•
Charger (DC1411)
C
M 4 --- M 8
(5/32" --- 5/16")
M 5 --- M 12
(3/16" --- 15/32")
M 5 --- M 10
(3/16" --- 3/8")
78.4
3
cm, 58 ft-lbs)*
•
0 --- 2,200
0 --- 2,800
1.4 (3.1 lbs)
85.8
3
cm, 63.3 ft-lbs)*
•
0 --- 2,470
0 --- 2,680
171 x 232
26 (1-1/64")
1.5 (3.3 lbs)
68
Driver chuck
DC magnet
9.6
20
9122
2.0
9.6
------
DC1411
------
7.2 --- 14.4
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