Chicago-Latrobe Jobber Length Drill Bit, Series: 150L, Imperial, #50 Drill - 0.07 in. Wire - Decimal, 2 in. Overall Length, 5XD Depth of Cut, 2 Flutes, Left Hand Spiral Flute, 1 in. Flute Length, 0.07 in. Diameter x 1 in. Length, Straight Shank, 118 Degree Point, Int Radial Point, Int, Cutting Direction of Cut, HSS Cutting Edge, Non-Pitch Coolant, HSS, Bright, Applicable Materials: Alloy Steel, Carbon Steel, and Cast Iron