Our IMPACT READY Titanium Nitride Coated drilling accessories now come in ToughCase+ system, the latest addition to our acccessory 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 of the Titanium Nitride Coated drill bit set allows for easy bit removal and the clear lid allows you to see inside at a glance. Constructed from one 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. The drill bit sets are ideal for metal, wood, and plastic.