Replaceable head drill body HYDRA with DIN 6535HE NC whistle notch shank, size 17.0mm with an overall length of 171.5mm and flute length of 97.5mm according to DORMER standard for 5xD drilling with HYDRA P (R950), HYDRA M (R960) or HYDRA K (R970) diameter 16.6 up to 17.5mm
For additional details please check the Manufacturer's site: