Micro Twist Drill High Precision List Number A3378TML-1.45 K30F Grade Solid Carbide TiN Finish Self-centering Drill Point (Deg.) 140 Decimal Equivalent 0.0571 Flute Length (In.) 5/16 Flute Length (mm) 8 Overall Length (In.) 1-49/64 Overall Length (mm) 45 Shank Dia (In.) 0.12 Steel Cast Iron NF Metals High Temperature Alloys and Titanium Alloys