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Reaming bit, also known as pilot reamer bit, is a hole opener that drills a pilot hole to a certain depth and then reams the hole to a larger diameter. It is mainly used for center hole reaming in long hole drilling. Threaded reaming bits are divided into integral reaming bit (dome type, pilot type) and split-type reaming bit. Our reaming button bits are mainly dome reaming bits and pilot reaming bits, such as R25 reaming bit, R28 reaming bit, reaming bit R32, R35 reaming bit, R38 reaming bit, T38 reaming bit, T45 reaming bit, T51 reaming bit, ST58 reaming bit, ST68 reaming bit, SR35 reaming bit.

Retract drill bit china are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried, and help improve the straightness of the borehole. As a China retrac button bit supplier, we can provide you with high-quality button bit includes retrac rock drill bits, such as R25 retract button bit, R28 retract button bit, R32 retrac button bit, R35 retrac button bit, R38 retrac button bit, t38 button bit, T45 retract drill bit, T51 retract drill bit, GT60 retract button bit, ST58 retrac button bit, ST68 retrac button bit, SR35 retrac drill bit and other types of rock drill bit.

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With the attention and investment of the infrastructure industry at home and abroad, in many construction industries with high construction difficulty and high risk, the mechanized drilling and blasting construction of rock drilling rigs have gradually replaced the pneumatic drilling and blasting construction with more personnel, high labor intensity, large safety risk, and low efficiency.

Top hammer shank adaptors, the role of which in rock drilling is to directly bear the impact energy and torque of the rock drill, and is used to transfer the energy from drill rig to drill rod. One end of the shank adaptor is connected to drill rig, and another end is connected to drill rod, so that the energy of drill rig can be transmitted to drill bit, and finally achieve the purpose of drilling.