OSG Drill Bit, High Performance Taper Length, Series: 1750, E Drill - Letter, 1/4 in Drill - Fraction, 6.35 mm Drill - Metric, 0.25 in Drill - Decimal Inch, 140 mm Overall Length, 87 mm Cutting Depth, 2 Flutes, Fast Spiral Flute, 87 mm Flute Length, 1/4 in Shank, Straight Shank, 120 deg Point, R-Thinning Point, Right Hand Cutting, HSS-CO Cutting Edge, HSS-CO, WXL® Coated, Applicable Materials: Alloy Steel, Aluminum, Carbon Steel, Cast Iron, Die Steel, Hardened Steel, Stainless Steel and Titanium...