Hitachi 728267 1-inch x 18-inch Auger Drill Bit</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>1-inch by 18-inch auger drill bit with 3/8-inch shank diameter</li><li>Precision design creates less wobble in the drill and bit</li><li>Self-feeding tip and wide throat leave cleaner holes</li><li>Ideal for wood， plastic and metal，Comes with a 30-day limited warranty</li><li>3/8” dimension for the shank measures from flat side to opposite flat side (not from the corners).</li><li>1" x 18" Auger Bit</li><li>3/8" shank</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/21JGUZuN05L.jpg' noproxy></br>