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The Hitachi 782530 SDS Plus cutter twin spiral drill bits are designed for the professional user and meet the highest quality requirements. The 2-cut drill bit has some new features and offers even more benefits. The centering point makes the first contact with the material to be processed. The three concrete breakers ensure improved efficiency in energy transmission by transferring the impact force to a smaller surface. Since the vario spiral is narrow at the front, this part has a large discharge capacity. The back of the coil is wider and thus more robust. The special design of the coil also reduces vibration caused during drilling.