Bosch Daredevil NKSC16 Auger Drill Bit, 1 in Dia, 6-1/2 in OAL, High-Speed, Wide Flute, 5/16 in Dia Shank
Bosch Daredevil NKSC16 Auger Drill Bit, 1 in Dia, 6-1/2 in OAL, High-Speed, Wide Flute, 5/1