Precision Twist Drill Taper Shank Drill Bit, General Purpose Small, Series: S209, Imperial, 9/16 in Drill - Fraction, 0.5625 in Drill - Decimal Inch, 8-1/4 in Overall Length, 4XD Cutting Depth, 2 Flutes, Spiral Flute, 4-7/8 in Flute Length, #1 Morse Taper Shank Taper Designation, 118 deg Point, Conventional Point, Right Hand Cutting Direction, HSS Cutting Edge, No Through Coolant, HSS, Oxide Treated, Applicable Materials: Steel, Stainless Steel, Cast Iron, Titanium, Nickel, Copper, Aluminum Magnesium, Synthetic Materials, Hard Materials and Graphite