Tooluxe 10171L 13-Piece Titanium Drill Bit Set, High Speed Steel | Quick Change 1/4&rdquo; Hex Shank TITANIUM | HIGH SPEED STEEL: classic high speed steel construction with titanium coating for proven capability and durability 135 SPLIT POINT TIP and TWIST DESIGN: increases cutting speed with self-centering and prevents walking, clears chips and particles faster QUICK CHANGE: 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck ORGANIZED HOLDER: set includes a drill bit holder with size index for easy storage and organizing SET INCLUDES: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, and 1/4 in.