button bit is our main product , the thread include R32 R38 R28 R25 ect , the diameter of the button bit from 32mm-170mm , A comprehensive range with 'Button', X and Cross with tungsten carbide tipped head configurations. Button Bit designs include; Standard, heavy duty, drop centre, ballistic, parabolic and retract and combination options. Available with all popular international thread forms such as R28, R32, R38, T38, T45, T51 ,T60，ST58，ST68.which can be equipped with rock drilling machines such as Atlas Copco, Boart Longyear, Sandvick, Ingersoll-Rand, Furukawa and so on.
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