Seco Indexable Insert Drill, Series: Perfomax™ SD523, 3/8 in Drill, 1-1/2 in Shank Dia, 2-3/4 in Shank Length, ISO 9766 Shank, 1.969 in Modular Connection Size, SPGX/SCGX Insert, 4.13 in Maximum Drill Depth, 8.258 in Overall Length, 3/8 in Dia, 3XD Drill Depth by Dia Ratio, 2 Drill Inserts, Insert Compatibility: SPGX11T3 Center, SCGX11T308 Peripheral, 4.327 in Flute Length, Yes Through Coolant (Yes/No)