Precision Twist Drill Aircraft Extension Drill, Type J Extra Length Heavy Duty, Series: CO501-6, #30 Drill - Wire, 0.1285 in Drill - Decimal Inch, 6 in Overall Length, 4XD Cutting Depth, 2 Flutes, Spiral Flute, 1-5/8 in Flute Length, 0.1285 in Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, HSS-E Cutting Edge, HSS-E, Bronze, Applicable Materials: Alloy Steel, Hardened and Tempered Steel, Titanium, Nickel, Lamellar Graphite and Nodular Graphite/Malleable Cast Iron