The Milwaukee® 4-Piece x 6" Speed Feed Wood Bit Set lets you drill up to 10X faster than flat boring bits. These self-feeding wood bits feature double wing spurs for drilling fast holes in clean wood. The feed screw and dual cutting edges permit fast cutting of clean holes that are ideal for feeding wire or bolts. The set includes 1/2", 5/8", 3/4" and 1" speed feed wood bits in a roll-up pouch with room for extra bits.