0.5000″ (1/2) Min Bore DIA x 0.750″ (3/4) Max Bore Depth x 0.0930″ (3/32) Tooth Width x 0.1500″ Projection x 0.5000″ (1/2) Shank DIA x 3.00″ (3) Overall Length – Carbide Retaining Ring Grooving Left Hand, AlTiN Coated