Freeborn MC-64-008 concave half round shaper cutter. 3 wings, 3/4" bore, Carbide tipped.  Carbide tipped for solid woods as well as man made products.   1/2" radius, 1.00" opening width.  Never been sharpened.  This cutter is in excellent condition, and sold "As Is" with no returns. We accept Pay Pal only. Your item will be shipped within 3 days of your funds clearing our account. Thank you for looking.  Shipping within the U.S. only.