YG-1 Silver & Deming Drill, Series: D1191, 9/16 in Drill - Fraction, 0.5625 in Drill - Decimal Inch, 6 in Overall Length, 3 in Cutting Depth, 3 Flutes, 3 in Flute Length, 1/2 in Shank, Flat/Reduced Shank, 118 deg Point, Split Point, M2 HSS Cutting Edge, M2 HSS, Black/Gold Oxide, Applicable Materials: Aluminum Alloy, Alloy Steel, Carbon Steel, Cast Iron, Magnesium Alloy, Stainless Steel, Tool Steel, Zinc Alloy and Plastic