Material Number 1131524ISO Catalog ID A2020LSER16[D] Adapter / Shank / Bore Diameter 20 mm[DM] Minimum Bore Diameter 24 mm[D2] Head Diameter 20 mm[F] F Dimension 13.4 mm[L1] Tool Length 180 mm[L2] Head Length 40 mm[GAAP] Axial Rake Angle 1.5Gage Insert LT16NRShim Screw ID Drive Size T10Insert Screw ID Drive Size T10