Material Number 2425292ISO Catalog ID B977A03400Grade KCU15[D1] Drill Diameter M 3.4 mm[L] Overall Length 66 mm[L3] Flute Length 28 mm[L4] Maximum Drilling Depth 23 mm[L5] Drill Point Length 0.55 mm[LS] Shank Length 36 mm[D] Adapter / Shank / Bore Diameter 6 mm