YG-1 i-Dream Drill Insert, Series: Y03G Series, 63/64 in Dia, G Insert Seat, 140 deg Included Angle, Grade P, K, For Use With: General Drill, Right Hand Cutting, Carbide, TiAlN Coated, Applicable Materials: Carbon Steel, Alloy Steel, High Alloyed Steel, Structural Steel, Tool Steel and Cast Iron