125mm Dia.,12mm Dia. Shank, 20mm LOC, 150mm OAL, 80mm Length below shank. Recommended for machining complex or irregular contours, finishing, and copy milling. AlTin coating provides excellent tool life when milling annealed and pre-hardened mold and tool steels. Best performance requires maximum heat at the cutting edge to oxidize the aluminum in the coating. Run dry when possible.