KYOCERA WCMX040204M1APR1230 3-Cutting Edge Indexable Drill Insert, ANSI Code: WCMX040204-M1APR1230, Trigon Shape, Material Grade: P, 040204 Insert, WCMX Insert, 0.094 in THK, 1/4 in Inscribed Circle, For Use On Steel, Manufacturer's Grade: PR1230