1-3/8″ x 6-1/2″ Auger Bit. The Milwaukee 1-3/8″ x 6-1/2″ Auger Bit features double wing spurs for fast, clean holes in wood. Designed with electricians, plumbers, utilities and other trades in mind, Milwaukee auger bits are impact-rated, so they’re strong enough for a variety of applications. The double wing spurs continually scribe the hole, producing smooth holes without breakout. The polished and coated flute finish means chips won’t stick, eliminating time-consuming stops to clean the bit.