Chicago-Latrobe Heavy Duty Jobber Length Drill Set, Series: 550ASP, Imperial System of Measurement, Minimum Drill Size 1/16 in., Maximum Drill Size 1/2 in., Drill Point Angle 135 Degrees, 15-Piece, Specifications: Right Hand Cutting, Spiral Flute, Split Point, Straight Shank, M42 HSS-Co 8, Gold/Straw