Replaceable head drill body HYDRA with DIN 6535HE NC whistle notch shank, size 22.0mm with an overall length of 161.5mm and flute length of 80.1mm according to DORMER standard for 3xD drilling with HYDRA P (R950), HYDRA M (R960) or HYDRA K (R970) diameter 21.83 up to 22.7mm
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