Featuring maximum durability and no-slip starting, the DeWALT is equipped with 13 commonly used bits designed to power through a range of applications. Crafted from heavy-duty black oxide, each bit features a 135 deg split point to helps to reduce walking. A rugged container keeps bits organized and ready to use.135 deg split point provides greaterParabolic flute eliminates the frustration of bit spinningThis set offers 13 black oxide drill bits ranging from 1/16 to 1/4 in bits and are stored in a tough case container