The Dewalt Tri-Flute 6x drill bits are ideal for drilling wood and offer 6x faster drilling penetration than a standard flat bit. Their 'Tri-Flute' design allows for faster chip ejection and their full screw tips ensure ease of use and pull through. DeWalt's Extreme series have the been designed on the Irwin Blue Groove bits with the added benefit of being impact rated with 1/4" hex shanks, making them suitable for use in impact drivers as well as all standard drills with a jawed chuck. The cutting spurs produce clean holes with minimal break out and the tapered flute reduces binding. The drill bits are also heat treated for extra durability. This 6 Piece Dewalt Wood Bit Set ideal for drilling wood and offer 6 times faster drilling penetration than a standard flat bit. Their 'Tri-Flute' design allows for faster chip ejection and their full screw tips ensure ease of use and pull through. The cutting spurs produce clean holes with minimal break out and the tampered flute reduces binding. The drill bits are also heat treated for extra durability. Self Feed Tri-Flute Drill Bits are designed for all types of general wood drilling. Ideal for electricians, carpenters, plumbers and other professionals. This set comes in the Medium ToughCase� ready to fix to the top of your existing Tstak case/tough case system. The DEWALT ToughCase+ Accessory Storage solutions have premium features to help keep drilling and fastening bits organized. The system includes four container sizes; the Small Bulk Storage Container, Small ToughCase�+ Container, Medium ToughCase�+ Container, and Large ToughCase�+ Container for unlimited configurations. The ToughCase�+ Containers feature newly-designed bit storage, with a unique bit bar position that allows for easy removal of bits. Clear lids let users see what's in the case at a glance. In addition, the Small, Medium and Large ToughCase�+ Containers include a proprietary latch system to connect to each other for optimize