Set Of 21 Pilot-Point Drill Bits Coated In Titanium Nitride From Dewalt 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 impact driver drill bit set 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 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. Ideal for metal, wood, and plastic. DEWALT drill bit set has connectable accessory storage system to optimize storage space Patented bit-bar design of the drill bits set allows easy removal of bits and customizable placement Clear lid of the Titanium Nitride Coated drill bit set allows you to easily see contents at glance Clip latch for secure closing Small Bulk Storage size fits inside the Small and Medium ToughCase plus (sold separately) - Ideal for organizing loose bits