Material Number 5873221ISO Catalog ID VSM490D050Z04S22XN15[D1] Effective Cutting Diameter 50 mm[D] Adapter / Shank / Bore Diameter 22 mm[D6] Hub Diameter 42 mm[L] Overall Length 40 mm[AP1MAX] 1st Maximum Cutting Depth 15 mmNumber of Inserts 4Max RPM 16300Coolant Supply YWeight Kilograms 0.28