Material Number 1959666ISO Catalog ID B977A06900Grade KCU15[D1] Drill Diameter M 6.9 mm[L] Overall Length 91 mm[L3] Flute Length 53 mm[L4] Maximum Drilling Depth 43 mm[L5] Drill Point Length 1.162 mm[LS] Shank Length 36 mm[D] Adapter / Shank / Bore Diameter 8 mm