Product Application

Roadway construction

Threaded drilling rodss and accessories for underground tunneling and rock drilling operations

The threaded drill tools for underground tunneling and rock drilling operations include threaded column-tooth drill bits, reaming drill bits, thread drill rods, guide drill rods, connecting sleeves and shanks.

Threaded button bits	Thread drill bit	R32、R35、TR35
Threaded button bits	Diameter of drill bit	41mm、42mm、43mm、45mm、48mm、51mm、54mm、57mm、64mm、76mm
Reaming bits	Thread specification	R32、R35、TR35
Reaming bits	Diameter of reaming drill bit	76mm、89mm、102mm、127mm
Coupling	Thread specification	R25、R28、R32、R38、T38
	Product diameter	35mm、40mm、45mm、56mm、57mm、59mm
	Product length	150mm、160mm、170mm、177mm、180mm、190mm、195mm
Threaded drilling rods	Thread specification	R23、R25、R28、TR28、R32、TR35、T35
	Specification of drill rod	H22、H25、H28、H32、H35、D32、D36、D39
	Length of drill rod	610mm、915mm、1220mm、1525mm、1750mm、1830mm、2095mm、2175mm、2300mm、2475mm、2700mm、2875mm、2975mm、3090mm、3400mm、3500mm、3700mm
Guide drill rod	Thread specification	T35
	Specification of drill rod	D48
	Length of drill rod	1220mm、1525mm、1830mm

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