High Quality Flexible Well Hammer DTH Drill Bit

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Middle-Low Air Pressure DTH Hammer without foot valve
Item Description
Weight(kg)
Part No.
1
Top Sub
2.60
MBR2A01
2
Check Valve
0.10
MBR2A02
3
Spring
0.05
MBR2A03
4
Air Distributor
0.60
MBR2A04
5
Internal Cylinder
0.80
MBR2A05
6
Piston
3.80
MBR2A06
7
External Cylinder
4.50
MBR2A07
8
Guided Sleeve
0.60
MBR2A08
9
"O"Ring of Stop Ring
0.01
MBR2A09
10
Stop Ring
0.10
MBR2A10
11
Drive Chuck
1.20
MBR2A11
12
Drill Bit

MBR2A12
Length(Less bit)
Weight(Less Bit)
External Diameter
Bit Shank
Hole Range
Connection
880mm
14.50kg
62mm
BR2
70-90mm
RD50 BOX
Working Pressure
Impact Rate At 1.4Mpa
Recommended Rotation Speed
Air Consumption
145-350PSI
1.0-2.5Mpa
28HZ
25-40 r/min
200-600CFM