From the DeWALT Extreme range, these drill bits give you high performance and faster drilling. DeWALT produce these bits from a solid one-piece billet ensuring the finished product is as strong it can be. This strength and the 1/4" hex shanks allow you to use them in an impact driver as well as normal drill drivers. A titanium nitride coating reduces heat build-up and adds extra durability. The unique self-centring tip design (a split point with a pilot point) eliminates walking and increases the drilling speed. The tip design eliminates the need for centre punching in most cases. The ten bits range from 3 to 12mm, overall length is 71.5 - 95mm, effective length 40 - 63.5mm, all housed in a robust case.