Drillco Straight Flute Drill Bit, Series: 710, Imperial, #7 Drill - Wire, 0.081 in Drill - Decimal Inch, 2-1/4 in Overall Length, 1-3/16 in Cutting Depth, Straight Flute, 1-3/16 in Flute Length, Straight Shank, 140 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, Solid Carbide Cutting Edge, Applicable Materials: Nickel Alloys, Chrome Alloys, Steel Weldments, Titanium Alloys, High Temperature Alloys and Stainless Steel Weldments, Solid Carbide, Bright