YG-1 Aircraft Extension Drill, Series: DL601, 3/8 in Drill - Fraction, 0.375 in Drill - Decimal Inch, 6 in Overall Length, 3-5/8 in Cutting Depth, Slow Spiral Flute, 3-5/8 in Flute Length, 3/8 in Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS-Co 5 Cutting Edge, HSS-Co 5, Oxide Treated, Applicable Materials: Alloy Steel, Aluminum, Bronze, Carbon Steel, Cast Iron, Mild Steel, Prehardened Steel, Stainless Steel and Titanium