Material Number 5578698ISO Catalog ID TCF500R2SLR40MG[D1] Drill Diameter M 50 mm[D1MAX] Drill Diameter Maximum 51 mm[D] Adapter / Shank / Bore Diameter 40 mm[L1] Insert Gage Length 147.785 mm[L4] Maximum Drilling Depth 101.785 mm[L5] Drill Point Length 1.785 mm[LS] Shank Length 70 mm[SSC] Insert Seat Size GGage Insert TCF150512GPGage Insert 2 TCF180508GC