Bosch 1-1/4" x 17-1/2" Daredevil Auger Bit NKLT20 Bosch Daredevil auger bits offer leading-edge technology in wood drilling; designed for superior performance against nail hits. A unique double cutter and reamer edge provide improved hole quality. A reinforced spine delivers additional strength during aggressive drilling. Wider flutes engineered for better chip removal. Features: Bosch Daredevil auger bits are easy in wood, tough on nails. Dual cutting edges deliver easier nail cutting and balanced drilling. Open-faced flute offers improved chip removal. Reinforced tip withstands repeated nail hits. Reamer edge provides improved entry- and exit-hole quality. 9x life with nail hits. Specifications: Length 17.5" Diameter 1-1/4" Bosch 1-1/4" Daredevil Ship/Spur Auger Bit 17-1/2" 7/16" Shank NKLT20