The Milwaukee® four piece 6-1/2 in spur auger bit set features the best assortment of 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. Milwaukee® Wood Drill Bit Set, 4 Piece, Specifications: 6 in L Bit, Alloy Steel