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Comparison chart
The four graphs drawn below show the results of our chipping or drilling tests under the following conditions;
HR4500C
A-1
A-a
B
Little
Much
100
115
105
95
120
85
90
HR5001C
HR3850
HR4000C
50
100
150
200
1. ø25mm hole
HR4500C
100
120
130
95
155
110
105
HR5001C
HR3850
HR4000C
50
100
150
200
2. ø28mm hole
HR4500C
100
100
100
125
135
110
185
HR5001C
HR3850
HR4000C
50
100
150
200
3. ø35mm hole
HR4500C
100
120
115
100
145
HR5001C
HR3850
HR4000C
50
100
150
200
Slow
Fast
Slow
Fast
Slow
Fast
Chipping amount
material : concrete whose compressive strength is 350 kgf/cm
in horizontal application
The results are shown in relative values when setting Model A-a of competitor A's data as 100.
Drilling speed
90
75
2
A-1
A-a
B
A-1
A-a
B
A-1
A-a
B