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The Hyundai DURAWING 315 is a Concentric Overburden System designed for casing of 373 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 315 is the self actuating wing bit system that works perfectly everytime.


Drilled Hole Diameter: 373mm

Casing Size O/D: 355.6mm

I/D: 336.6mm 


Major Body Diameter: 334mm

Length: 945mm

System Open: 373mm

Casing Size: 336.6 / 355.6mm

Total Weight (approx): 322kg

Hammer Type: QL120,  SD12 

Casing Drill Bit - Durawing SUS315

SKU: Durawing Bit SUS315
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