Replaceable head drill body HYDRA with DIN 6535HE NC whistle notch shank, size 23.0mm with an overall length of 160.5mm and flute length of 82.5mm according to DORMER standard for 3xD drilling with HYDRA P (R950), HYDRA M (R960) or HYDRA K (R970) diameter 23 up to 23.5mm
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