Transform your hand auger into an ice-drilling machine with the Bear Creek Auger Adapter and Retainer Combo. The included stainless steel adapter allows you to attach your battery-operated drill to your hand auger, so you can chew through the ice and start fishing. The included retainer prevents the loss of auger drills from accidental unchucking of the drill. Both the adapter and retainer fit most brands of ice augers. Dia: 7".Manufacturer model #: BC-AC-2. Turn your hand auger into a power auger Includes adapter to attach a cordless drill to your auger Includes retainer to prevent loss of auger drills Fit most brands of ice augers