Extension rod, with male threads at both ends, connects with a shank adapter through a coupling sleeve.Rock drill extension rod can divide into round extension rods and hexagonal extension rods, and is widely used in bench drilling, bolt hole drilling, production drilling, long hole drilling, small hole drilling and other fields.
Litian owns a large scalerock drill bits factory to produce and provide high quality rockdrill bit extension rods, such as R22 drill extension rod, R25 extension rod, R28 extension rod, R32 extension rod, R38extension drill rod, T38 threaded extension rod,T45 extension rod, T51 rod, SR25 extension rod.
As one ofrock drilling tools manufacturers, we will do our best to meet all the needs of customers.