14-Piece Titanium Nitride Coated Speed Tip Drill Bit Set, speed tip design to reduce walking, Titanium Nitride coating for longer life, 2 each of following: 1/16 in. and 1/8 in., 1 each of the following: 5/64 in., 3/32 in., 7/64 in., 9/64 in., 3/16 in., 7/32 in., 1/4 in., 5/16 in., 3/8 in. and 1/2 in., tough case container. Our IMPACT READY Titanium Nitride coated drilling accessories now come in ToughCase+ system, the latest addition to our accessory storage line. The ToughCase+ system is a connectable case system designed to optimize storage space and keep your bits organized. The patented bit-bar design allows for easy bit removal and the clear lid allows you to see inside at a glance. Constructed from 1 solid piece of heavy-duty metal, DEWALT IMPACT READY Titanium Nitride coated drill bits are up to 5 times more durable than 2-piece conventional bits. A patented web taper helps to increase bit strength and a proprietary PILOT POINT tip delivers speed and clear, burr-free holes with helps to reduced bit walking. Ideal for metal, wood and plastic.