Solid Carbide Drill High Precision K3281TFT-6.1 Number of Pieces 1 K30F Grade Solid Carbide TFT - TiNAl Finish Self-Centering Point Drill Point (Deg.) 150 Flute Length (In.) 0.551181 Flute Length (mm) 14 Overall Length (In.) 3.503937 Overall Length (mm) 89 Shank Dia (In.) 0.393701 Shank Dia (mm) 10