Titanium Drill Bit Set, 13Pc Bosch titanium drill bits offer the best durability and speed for general purpose drilling applications. Best for cutting holes into metal and work equally well in wood and plastic drilling. Lasts 6x longer than high speed steel bits. The speed helix design penetrates 3x faster than standard bits. Includes: (1) 1/16î, (1) 9/64î, (1) 1/4î, (1) 5/64î, (1) 5/32î, (1) 7/32î, (1) 3/32î, (1) 11/64î, (1) 15/64î, (1) 7/64î, (1) 3/16î, (1) 1/8î, (1) 13/64î. Case Type: Brute Tough TI13