Gold Member Since 2014
Audited Supplier

ZHEJIANG PULANKA ROCK TOOLS CO., LTD.

Rock Bit, Button Bit, Chisel Bit manufacturer / supplier in China, offering 102mm Gt60 Hydraulic Bench Thread Button Rock Drill Bit, 102mmt51 Hydraulic Bench Thread Button Drill Bits, 36mm 7buttons Atlas Copco Machine Taper Drill Bits and so on.

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34mm 8buttons 12degree drill bit
our 34mm 8buttons 12degree can drill 80 to 100 meters on granite,very hard rock type.custo...
drill bits working site of 115mmDHD340
the 115mmDHD340 average lifespan is 750mm when working on the granite.