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The Hyundai DURAWING 147 is a Concentric Overburden System designed for casing of 192 mm diameter holes through varying formations into bed rock.
The wing bits are enclosed making them the most professional & efficient system on the market today as they are not exposed to "clogging" in loose overburden material while drilling down to the bedrock.
When the drilling starts, the bit wings protude utilising a unique cam sliding mechanism. The key feature of the DURAWING 147 is the self actuating wing bit system that works perfectly everytime.


Drilled Hole Diameter: 192mm

Casing Size O/D: 185mm

I/D: 158mm 


Major Body Diameter: 157mm


System Open: 192mm

Casing Size: 158 / 185mm

Total Weight (approx): 

Hammer Type: QL50, DHD350, SD5, M50, Mach 50, MC55 

Casing Drill Bit - Durawing SUS147

SKU: Durawing Bit SUS147
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