Irwin Speedbor Drill Bit Set For Wood 4Inch 6Piece 1877239

Three cutting spurs for faster, cleaner holes, less breakout and extended drilling life, Full screw-point tip allows bit to self-feed for ease of drilling, Shorter overall length for drilling in tight spaces. Ideal for holes up to 2" deep, 1/4" quick-change shank reduces slipping in standard chucks and is compatible with all 1/4" quick-change chucks, including impact drills