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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.

Several customers have been tried for this by drilling 'holes' on the new iPhone 7 after watching this prank video on YouTube, suggesting that the process may help them bring back their missing 3.5mm headphone jack.

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.

Litian can produce and provide all tbm spare parts components and custom-made cutter boxes, cutter holders, bucket teeth, and other accessories. Disc Cutter Components Disc Cutter Hub（housing） Litian disc cutter hub is forged from high-quality alloy steel, heat treatment hardness is HRC36-40, with good wear resistance, deformation resistance, comprehensive performance. We have developed cutter hubs according to different geological conditions and working conditions in a targeted manner to best suit the requirements of different strata. The roughcast of the cutter hub is forged, which makes the material structure dense and improves the load capacity. The hubs are processed by CNC machines, and the inner holes of the bearing seats at both ends are processed at one time to ensure the machining accuracy, and there is no damage, deformation, severe wear of the cutter hub.