coal mining drill bits online manufacture

Product name: Extention T45 Thread Drill Rod Male-Male connection Product category: Drilling rod Threaded Connection: R22, R25, R32, R38, T38, T45, T51 Length: 1830mm KINGDRILLING thread drill rods are made of ... Read More

KINGDRILLING Diamond CO., LTD is one of the most professional private enterprise specialized in researching and producing Concentric casing drilling bit, Eccentric drilling system, ODEX casing bit, DTH hammer, ... Read More

Product Name: 375mm MRING Overburden Concentric Casing Drilling System Bit For Coal Mining Equipment External Dia.(mm): 375mm Product details: Overburden Casing Drilling - your ultimate solution for high... Read More

Product name: High performance 194mm 3 middle wings concentric casing drilling bit for construction Product category: Concentric drilling tools Matched hammer: Hammer DHD360 Matched casing pipe OD: 194mm High ... Read More

Product name:114MM single use symmetric casing drilling bit for waterwell drilling Product model: Mring casing bit Matched hammer: Hammer DHD3.5 Matched casing pipe OD: 108mm Kingdrilling MRING overburden ... Read More

.OD 127mm MRE Dual Rotors Eccentric Overburden Casing Drilling Bit CIR Shank Description MRE Dual Rotors Eccentric Overburden casing drilling system, At clockwise rotation, reamer bits expand to bring the ... Read More

OD 133mm MRE Dual Rotors Overburden Casing Drilling bit CIR110 Shank Description MRE Eccentric Dual Rotors system for drilling overburden casing, Reamer bits enlarge to insert the casing pipe into the hole when ... Read More

OD 133mm MRE Dual Rotors Overburden Casing Drilling Bit CIR110 Shank With Casing Pipe Description MRE Dual Rotors Eccentric Overburden casing drilling system, At clockwise rotation, reamer bits expand to bring ... Read More

Caing tube OD 133mm MRE Dual Rotors Overburden Casing Drilling Bit DHD340 Shank For Soft Hard Rockformation Description MRE Dual Rotors Eccentric Overburden casing drilling system, At clockwise rotation, reamer ... Read More

Product name: High performance 133mm symmetric 3 reamers casing drilling system for soft and hard rock formation Product category: High performance 133mm symmetric casing drilling tools Matched hammer: Hammer ... Read More