0.4900″ Min Bore DIA x 0.335″ Max Bore Depth 0.0780″ (5/64) Tooth Width 0.1000″ Projection x 0.5000″ (1/2) Shank DIA x 2.50″ (2-1/2) Overall Length – Carbide Quick Change – Face Grooving Right Hand, AlTiN Coated