Milwaukee® Jobber Length Twist Drill Bit, Series: Thunderbolt® RED HELIX™, Imperial, 5/32 in Drill - Fraction, 0.1562 in Drill - Decimal Inch, 3.13 in Overall Length, 2 in Cutting Depth, Parabolic Flute, 2 in Flute Length, 3/8 in Shank, Round Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, Steel Cutting Edge, Steel, Cobalt, Applicable Materials: Metal, Plastic, PVC, Stainless Steel and Wood