Now you can drill holes into wood in hard to reach areas you couldn't get to before without breaking off the tip of a good drill bit. These durable drill bits are precision ground from one piece of M2 High Speed Steel; there is no weak spot where two pieces are welded or crimped together. With a brad point tip, these bits are ideal for drilling into wood with pin point accuracy. A little over 2-1/4-Inch overall length lets you drill in confined spaces and around tight corners. The shank is 1/4-Inch hex shaft that works with standard quick change chucks. Use with a Drive90 right angle driver from Milescraft to get inside of really tight spaces. This 6-Piece set includes common size drill bits: 3/32, 1/8, 3/16, 1/4, 5/16, and 3/16-Inch diameter.