Material Number 1913591ISO Catalog ID B977A10500Grade KCU15[D1] Drill Diameter M 10.5 mm[L] Overall Length 118 mm[L3] Flute Length 71 mm[L4] Maximum Drilling Depth 56 mm[L5] Drill Point Length 1.8 mm[LS] Shank Length 45 mm[D] Adapter / Shank / Bore Diameter 12 mm