Material Number 1098146ISO Catalog ID A20SSDUCR11[D] Adapter / Shank / Bore Diameter 20 mm[DM] Minimum Bore Diameter 25 mm[F] F Dimension 13 mm[L1] Tool Length 250 mm[CS] Coolant Supply Size 1/8-27 NPTGage Insert DC..11T308Insert Screw ID Drive Size T15