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7. COMPARISONS WITH SIMILAR PRODUCTS
7-1. Specification Comparisons (Cordless Impact Driver)
HITACHI
WH 9DMR
Maker
Model
Item
Catalog specifications
Capacity
M 4 --- M 8
(5/32" --- 5/16")
Small screw
M 5 --- M 12
(3/16" --- 15/32")
Ordinary bolt
80
(820 kgf
•
cm, 710 in-lbs.)
Max. tightening torque
N
•
m
0 --- 2,600
No-load rotation speed
/min
0 --- 3,200
Impact rate
/min
1.4 (3.0 lbs.)
Main body weight
kg
109
(1110 kgf•cm, 965 in-lbs.)
Max. tightening torque
N
•
m
Measured figures
0 --- 2,550
No-load rotation speed
/min
0 --- 3,100
Impact rate
/min
155 x 223
(6-7/64" x 8-25/32")
Overall length x height
mm
26.5 (1-3/64")
Center height
mm
1.43 (3.1 lbs.)
Main body weight
kg
70
No-load sound pressure level
dB(A)
Trigger switch with
forward/reverse
changeover pushing
button with brake and
variable
Type of switch
DC magnet
Type of motor
9.6
Voltage
27
Current
EB 9B, EB 926H or EB 930H
Battery
V
A
Type
EB 9B: 2.0
EB 926H: 2.6
EB 930H: 3.0
Nominal capacity
Ah
9.6
Nominal voltage
V
Ambient temperature
û
C
UC 14YFA or UC 18YG
Model
UC 14YFA: 56
UC 18YG: 70
Power input capacity
VA
UC 14YFA: 7.2 --- 14.4
UC 18YG: 7.2 --- 18
Recharging voltage
V
Plastic tool case
Charger (UC 14YFA
or UC 18YG)
Standard accessories
Charger
*
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
: Main body weight does not include accessory tools and hook (hexagon bit etc.).
*
2
*
3
*
2
*
2
WH 9DM2
M 4 --- M 8
(5/32" --- 5/16")
M 5 --- M 12
(3/16" --- 15/32")
105
(1070 kgf
•
cm,
930 in-lbs.)
0 --- 2,800
0 --- 3,200
1.2 (2.6 lbs.)
82
(835 kgf
•
cm, 725 in-lbs.)
0 --- 2,570
0 --- 3,190
147 x 223
(5-25/32" x 8-25/32")
26.5 (1-3/64")
1.29 (2.8 lbs.)
70
Trigger switch with
forward/reverse
changeover pushing
button with brake and
variable
DC magnet
9.6
21
EB 9B or EB 930H
EB 9B: 2.0
EB 930H: 3.0
9.6
0 --- 40
UC 14YF2 or UC 14YFA
44 or 56
7.2 --- 14.4
Plastic tool case
Charger (UC 14YF2
or UC 14YFA)
Driver chuck
Tool tip mounting system
Driver chuck
0 --- 2,400
0 --- 3,000
1.59 (3.5 lbs.)
105
(1070 kgf
•
cm, 930 in-lbs.)
0 --- 2,450
29 (1-9/64")
1.57 (3.5 lbs.)
70
Trigger switch with
forward/reverse
changeover pushing
button with brake and
variable
DC magnet
9.6
28
DW 9061
9.6
---
DW 9107
---
7.2 --- 14.4
Driver chuck
P
101.7
(1035 kgf
•
cm, 900 in-lbs.)
165 x 233
(6-1/2" x 9-11/64")
1.7
Plastic tool case
Charger
M 5 --- M 10
(3/16" --- 3/8")
High-strength bolt
M 5 --- M 10
(3/16" --- 3/8")
0 --- 40
*
1
*
1
0 --- 2,810