T45-3660mm (12ft) thread extension MF drill rods are produced with round sections in all common thread designs, and in Male/Female (M/F) connections. All of our Jinquan's extension drill rods are heat-treated with carburization or high frequency, bombinated with phonemicization.
Rock drill bits' body is made of high quality imported special steel 45CrNiMoV, the cutting head is made of special alloy YK05 after special processing.
Jinquan's tungsten carbide buttons are with superior wear resistance and impact toughness superior, with higher drilling speed compared with the similar rock drilling tools. Rock button drill bits series tools’ passivation time is longer, approximate 5-6 times of the other drill bits. This is beneficial to save the auxiliary working hours, reduce manual labor and accelerate the construction speed.
T45 flat face retrac button bits own following characteristics:
Thread button bit size available: 76mm, 89mm, 102mm;
Thread button bit skirt available: regular skirt; retract skirt;
Thread button bit face available: falt face; drop center face;
Thread button bit button shape available: (hemi) spherical; ballstic; conical.
Our T45 series rock drilling button bits are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring etc.
Other name is coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod, ensuring the ends touch for efficient energy transmission. Coupling are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools.