Material Number 1913583ISO Catalog ID B977A08500Grade KCU15[D1] Drill Diameter M 8.5 mm[L] Overall Length 103 mm[L3] Flute Length 61 mm[L4] Maximum Drilling Depth 49 mm[L5] Drill Point Length 1.44 mm[LS] Shank Length 40 mm[D] Adapter / Shank / Bore Diameter 10 mm