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The roller cutter is an essential cutting tool for the raise boring machine during the bottom-up reverse reaming drilling operation, primarily used for breaking and cutting rock. Its surface is regularly inlaid with hard alloy teeth, which, under the drive of the machine and through the continuous lifting and rotating action of the drill pipe, continuously break and roll-cut the rock, causing it to continuously peel off and fall, thereby achieving the purpose of upward reaming drilling of the shaft.