The ingenious K-Drill Electric Ice Auger Chipper Bit allows you to use your 18V cordless hand drill to quickly and easily re-open old holes. No need to lug your power auger out to your fish house. Once you drill your initial holes with your auger, just bring along your hand drill and the K-Drill Chipper Bit and re-open those old holes in seconds! The unique centering pin greatly reduces blade jump for a quick, clean hole every time. Plus, the composite flutes are designed to make it easy to remove ice without getting it all over the floor of your fish house. And no worries about the K-Drill Bit sinking down the hole if it gets detached from your drill - it floats! Requires a minimum of an 18 volt, high-torque drill for best results. Designed to work with drills with 1/2" chuck.