Material Number 1913598ISO Catalog ID B977A12500Grade KCU15[D1] Drill Diameter M 12.5 mm[L] Overall Length 124 mm[L3] Flute Length 77 mm[L4] Maximum Drilling Depth 60 mm[L5] Drill Point Length 2.15 mm[LS] Shank Length 45 mm[D] Adapter / Shank / Bore Diameter 14 mm