The Performance W9017 29-Piece Titanium-Coated Drill Bit Set with Steel Case includes assorted bit sizes, all high-speed steel and coated with titanium nitride to extend the life of the bit. Features: High speed steel for general purpose drilling applications. Titanium nitride coating extends the life of the bit. Great for drilling metal, plastic or wood. Comes with a handy durable steel storage case. Split point starts on contact. Bit sizes included: 9/32, 17/64, 1/4, 15/64, 7/32, 13/64, 3/16, 11/64, 5/32, 9/64, 1/8, 7/64, 3/32, 5/64, 1/16, 13/32, 25/64, 3/8, 23/64, 11/32, 21/64, 5/16, 19/64, 1/2, 31/64, 15/32, 29/64, 7/16 and 27/64-Inch. What"s In The Box: Performance Tool W9017 29-Piece Titanium-Coated Drill Bit Set.