Milwaukee® Jobber Length Drill Bit, Series: Thunderbolt® Secure-Grip™, Imperial, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, 5-1/2 in Overall Length, 4-1/16 in Cutting Depth, Parabolic Flute, 4-1/16 in Flute Length, 3/8 in Shank, 3-Flat/Reduced Shank, 135 deg Point, Split Point, Steel Cutting Edge, Steel, Titanium Coated, Applicable Materials: Ferrous Metal, Non-Ferrous Metal, Plastic and Wood