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The threaded drill bits are equiped with the hydraulic drilling jumbo and used for crush rock, which are widely used in tunnel construction, large scale mine (open and underground) and large
section tunnel advance in metal mine.2.Geotools can make all kinds of threaded drill bits, that include R25, R28, R32, R35, R38, T38, T45, T51, ST58, HT60, ST68 and so on, and the head diameter
range from 41mm to 127mm.3.Our R&D team will develop the sharpest industry "teeth", the most suitable bits for different application.The bits with sharp buttons are suit for hard and mid-hard
rock, and have excellent wear resistance and driving speed. The bits with round buttons are extensively used in hard rock with high abrasion and impact resistance.
