The TEKTON Mini Star Bits are constructed from sandblasted S-2 steel with precision milled tips to ensure exact fit. Bits have universal fit 1/4-Inch hex shanks. Keep bits stored in the bit organizer. The bits have a quality guarantee. Set Includes: (6) Star Drive 1-Inch Bits: SD-5, 5.5, 6, 7, 8 and 9.