Screw Machine Drill, Standard, List Number 559, Number of Pieces 1, Heavy Duty Grade, Cobalt Steel, Straw Finish, Split Point, Drill Point (Deg.) 135, Letter Size Y, Decimal Equivalent 0.4040, Flute Length (In.) 1-15/16, Overall Length (In.) 3-5/16, Shank Dia. (In.) 0.4040, For Alloy, Tool And Stainless Steels, Cast Iron