KYOCERA SS0500DRA100M15 Magic Drill DRA High Efficiency High Performance Replaceable Tip Drill With Coolant Through Channel, 0.394 to 0.413 in Drill, DA Insert, 3.002 in OAL, 1.5xD Drill Depth by Dia Ratio, 100 Insert Seat, 1/2 in Dia Shank