Features and Benefits:�Clean holes: Double wing spurs permit cleaner hole cutting�Efficient: Up to 10X faster drilling than flat boring bits�Fast chip removal: Nonstick, polished and coated flutes eliminate costly cleaning time�Versatile: 1/4" Power Groove Shank fits all 1/4" extensionsMilwaukee® 5/8 in. x 6 in. SPEED FEED™ wood bits let 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.