--- 11 ---
Drill bit dia. (mm)
Drilling speed (mm/min.)
800
200
300
400
500
600
700
0
100
8
10
16
18
20
22
24
26
28
30
14
12
HITACHI DH 30PC2
HITACHI DH 30PC
B
C
6-2. Drilling Speed Comparison
Drilling speed varies considerably depending on the work conditions. Use the factory test results shown in Fig. 1
for comparison purpose only.
6-3. Chiseling Performance Comparison
The chiseling performance varies considerably depending on the work conditions. Use the factory test results
shown in Fig. 2 for comparison purposes only.
Fig. 2
Fig. 1
DH 30PC2
DH 30PC
HITACHI
HITACHI
Maker
Model
Chiseling amount (kg/30 min.)
Voltage
supply
230 V
B
C
36
32
57
56
0
10
20
60
50
40
30
70
[Test conditions]
Direction: Downward drilling
Pushing force: 98 N (10 kgf)
Test material: Concrete panel with a compression strength of 2,352 N/cm
2
(240 kgf/cm
2
)
