Chicago-Latrobe General-Purpose Silver And Deming Drill, Premium High Speed Steel, Black Oxide Finish, 118 DEG Split Point, Drill Point: 0.9375 IN, Size: 15/16 IN, Flute Length: 3-1/8 IN, Overall Length: 6 IN, Shank Diameter: 1/2 IN, Reduced Flatted Shank, Style: 190F, Hand of Spiral Cut: RHS/RHC, Metric Size: 23.81 MM, For Carbon Steel, Cast Iron, Alloy Steel, Wood