Nimrod Ice Auger Adapter - Converts Hand Auger to Power Auger - Made in USA - #TONII - For Pin System Augers Works With 3/8" or 1/2" Cordless Drills Three-sided Arbor Prevents Spinning Cuts Through 10" of Ice in About 8 Seconds! Lightweight and Easy to Handle! **For New Pin System Handle Augers, NOT Threaded Handle**