Product details:

203302, Amana Carbide Tipped Hinge Boring Bit R/H 30mm Dia x 70mm Long x 10mm Shank Application: Boring machines (10mm shank) and drill presses (3/8" shank). Specifications: Tool No. 203302 (D) Diameter (30mm) (d) Shank (10mm) Overall Length (L) (70mm) Rotation Right Hand