Replaceable head drill body HYDRA with DIN 6535HE NC whistle notch shank, size 16.0mm with an overall length of 211.5mm and flute length of 141.5mm according to DORMER standard for 8xD drilling with HYDRA P (R950), HYDRA M (R960) or HYDRA K (R970) diameter 15.6 up to 16.5mm
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