Titan USA Aircraft Extension Drill, Type B, Series: 680, #30 Drill - Wire, 0.1285 in Drill - Decimal Inch, 12 in Overall Length, 1-5/8 in Cutting Depth, 2 Flutes, Spiral Flute, 1-5/8 in Flute Length, 0.128 in Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Uncoated, Applicable Materials: Steel, Stainless Steel, Cast Iron, Titanium, Nickel, Copper, Aluminum, Magnesium and Synthetic Materials