Chicago-Latrobe Jobber Length Drill Bit, Heavy Duty, Series: 550, Imperial, E Drill - Letter, 0.25 in Drill - Decimal Inch, 4 in Overall Length, 5XD Cutting Depth, 2 Flutes, Right Spiral Flute, 2-3/4 in Flute Length, 1/4 in Dia x 1-1/4 in L Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8% Cutting Edge, No Through Coolant, M42 HSS-Co 8%, Straw Oxide, Applicable Materials: Alloy Steel, Stainless Steel, Titanium and Tool Steel