Triumph® Jobber Length Drill Bit, General Purpose, Series: T2, Imperial, #66 Drill - Wire, 0.033 in Drill - Decimal Inch, 1-3/8 in Overall Length, 1/2 in Cutting Depth, 1/2 in Flute Length, 118 deg Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum/Aluminum Alloys, Wood, Plastic, Soft and Medium Bronze