-8-
1. Comparison of Specifications
(Superior specifications:
)
Maker
HITACHI
Model name
DH 22PH
B
C
mm
22
23
22
Capacity: Concrete
Inch
7/8”
29/32”
7/8”
mm
13/24
13/30
13/32
Capacity: Steel/Wood
Inch
1/2”/1”
1/2”/1 to 3/16”
1/2”/1 to 1/4”
Input power
W
620
650
710
Impact energy
J
1.7
2.5
2.3
min
-1
0 to 1,400
0 to 1,000
0 to 1,050
No-load rpm (Forward)
min
-1
0 to 910
0 to 1,000
0 to 1,050
Full-load bpm
min
-1
0 to 5,600
0 to 4,400
0 to 4,050
Mode
-
3
2
2
Variable speed
-
Yes
Yes
Yes
Reverse switch type
-
Push button
CB holder
CB holder
Handle
No
Yes
Yes
Soft grip
Gear cover
No
No
Yes
mm
318
342
357
Overall length
Inch
12 to 1/2”
13 to 7/16”
14 to 1/16”
No-load vibration level
(Tri-axial, measured)
m/s
2
12.1
12.4
8.7
Full-l load vibration level
(Tri-axial, measured)
m/s
2
13.2
16.8
16.2
No-l load noise level
(measured)
dB
95.2
91.3
87.7
Full-l Load noise level
(measured)
dB
89.4
87.1
85.0
kg
2.1
2.3
2.5
Weight
lbs
4.6
5.1
5.5
Internal pressure
adjustment mechanism
-
Yes
Yes
Yes
COMPARISON WITH SIMILAR PRODUCTS
