0.3750″ (3/8) Min Bore DIA x 1.000″ (1) Max Bore Depth x 0.0390″ Tooth Width x 0.1000″ Projection x 0.3750″ (3/8) Shank DIA x 2.50″ (2-1/2) Overall Length x 0.0030″ Radius – Carbide Retaining Ring Grooving Right Hand, AlTiN Coated