Irwin 15-Piece Titanium Drill Bit Set

15-Piece Titanium Coated High-Speed Steel Drill Bit Set with Pro Case. Titanium Nitride coating resists heat and friction, extending the cutting edge life up to six times that of other high-speed step drill bits. Made from premium high-speed steel for increased durability. 135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface. Rubber over-molded case has automatic indexing for easy bit access and Identification. Removable cartridges are easy to carry to and from the worksite. Includes 1/16 In., (2) 5/64 In., 3/32 In., (2) 7/64 In., 1/8 In., (2) 9/64 In., 5/32 In., 3/16 In., 7/32 In., 1/4 In., 5/16 In., 3/8 In.