Product Introduction
Thread drill rods for underground support drilling operations
The thread connection drill tools for underground support drilling operations include thread column-tooth drill bits, reaming drill bits, thread drill rods, guide drill rods, connection sleeves and shanks.

| Thread column tooth bit | Thread drill bit | R23、R25、R28、TR28、R32、TR35、T35 |
| Bit diameter | 32mm、33mm、35mm、37mm、38mm、41mm、43mm、45mm、48mm、51mm、54mm、57mm、64mm、76mm | |
| Reaming drill bit | Thread specification | R25、R28 |
| Diameter of reaming drill bit | 57mm、64mm、70mm、76mm、89mm | |
| Connection sleeve | Thread specification | R25、R28、R32、R38、T38 |
| Product diameter | 35mm、40mm、45mm、56mm、57mm、59mm | |
| Product length | 150mm、160mm、170mm、177mm、180mm、190mm、195mm | |
| Thread drill rod | Thread specification | R23、R25、R28、TR28、R32、TR35、T35 |
| Drill rod specification | H22、H25、H28、H32、H35、D32、D36、D39 | |
| Drill rod length | 610mm、915mm、1220mm、1525mm、1750mm、1830mm、2095mm、2175mm、2300mm、2475mm、2700mm、2875mm、2975mm、3090mm、3400mm、3500mm、3700mm | |
| Guide drill rod | Thread specification | T35 |
| Drill rod specification | D48 | |
| Drill rod length | 1220mm、1525mm、1830mm |
Address: Building 35-1, Ankang Road, Lianshan District, Huludao City, Liaoning Province
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