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7. COMPARISONS WITH SIMILAR PRODUCTS
7-1. Specification Comparisons (Cordless Impact Driver)
M 4 --- M 8
(5/32" --- 5/16")
HITACHI
WH 12DH
WH 12DC
C
Maker
Model
Item
M 4 --- M 8
(5/32" --- 5/16")
M 4 --- M 8
(5/32" --- 5/16")
*
1
Catalog specifications
Capacity
Small screw
M 5 --- M 12
(3/16" --- 15/32")
M 5 --- M 12
(3/16" --- 15/32")
M 5 --- M 12
(3/16" --- 15/32")
Ordinary bolt
M 5 --- M 10
(3/16" --- 3/8")
M 5 --- M 10
(3/16" --- 3/8")
M 5 --- M 10
(3/16" --- 3/8")
High-strength bolt
1,000
(98 N
•
m, 72 ft-lbs)
900
(88.2 N
•
m, 65 ft-lbs)
1,000
(98 N
•
m, 72 ft-lbs)
Max. tightening torque
kgf
•
cm
0 --- 2,200 [1,700]
0 --- 2,000
0 --- 2,200
No-load rotation speed
/min
0 --- 3,000 [2,700]
0 --- 2,900
0 --- 3,000
Impact rate
/min
1.7 (3.7 lbs)
[1.6 (3.5 lbs)]
1.7 (3.7 lbs)
1.7 (3.7 lbs)
Main body weight
kg
1,070 (104.9 N
•
m, 77 ft-lbs)
[860 (84.3 N
•
m, 62 ft-lbs)]
930
(91 N
•
m, 67 ft-lbs)
1,000
(98 N
•
m, 72 ft-lbs)
Max. tightening torque
kgf
•
cm
Measured figures
0 --- 2,180 [1,680]
0 --- 2,010
0 --- 2,160
No-load rotation speed
/min
0 --- 2,900 [2,700]
0 --- 2,900
0 --- 2,860
Impact rate
/min
176 x 245 [221] (6-15/16"x
9-21/32" [8-45/64"])
198 x 245
(7-25/32" x 9-21/32")
Overall length x height
mm
176 x 232
(6-15/16" x 9-1/8")
26 (1-1/64")
26 (1-1/64")
26 (1-1/64")
Center height
mm
1.73 (3.8 lbs)
1.73 (3.8 lbs)
1.73 (3.8 lbs)
Main body weight
kg
69
69
69
No-load sound pressure level
dB(A)
Driver chuck
Driver chuck
Driver chuck
Tool tip mounting system
Variable speed switch with
forward/reverse
changeover lever
Type of switch
Variable speed switch with
forward/reverse
changeover lever
Variable speed switch with
forward/reverse
changeover lever
DC magnet
DC magnet
DC magnet
Type of motor
12 [9.6]
12
12
Voltage
17 [13]
17
17
Current
EB 12B, EB 12H
EB 12
1222
Battery
V
A
Type
EB 12B: 2,000
EB 12H: 2,200 [1,200]
1,200
2,000
Nominal capacity
mAh
12 [9.6]
12
12
Nominal voltage
V
0 --- 40
5 --- 40
------
Ambient temperature
C
UC 14YF or UC 14YF2
UC 12Y
DC1411
Model
44
51
------
Power input capacity
VA
7.2 --- 14.4
2.4 --- 12
7.2 --- 14.4
Recharging voltage
V
Plastic tool case
Charger (UC 14YF or
UC 14YF2)
Plastic tool case
Charger (UC 12Y)
Plastic tool case
Charger (DC1411)
Standard accessories
Charger
[ ]: in the case of EB9 type battery
*
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 sec. with a hexagon socket.
*
3
: Main body weight does not include accessory tools (hexagon bit, etc.).
*
1
*
2
*
3
*
2
*
3
