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Retrievable ring bit casing bit by down the hole hammer
Product details:
Down the hole(DTH) tools manufacturer KINGDRILLING produce professionally retrievable Ring Bit Casing System by DTH hammer which is used in drilling and casing a hole through unstable ground conditions.
Product feature:
The system consists of a driver bit,Website:http://www.mingdthbit.com, a ring, and independent casing shoe. When the bit rotated anticlockwise, driver bit can be locked to the ring. After drilling, the ring will be separated from the driver bit and kept in the bottom of the hole.
Model
External Dia.(mm)
Casing Dia.(OD*ID)
Spline
MK-MRING90
125
114*102
MACH33, DHD3.5
MK-MRING115
155
139*127
DHD340, SD4, QL4
MK-MRING140
188
168*153
......url:http://www.mingdthbit.com |
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