Every contractor and serious DIYer will find themselves using TEKTON 5-Piece 3-Inch Power Bit Set. Constructed from nickel chrome molybdenum steel with a durable sandblasted finish, these bits are built to last. Bits are precision machined for exact fit. They fit universal 1/4-Inch hex shank. The set has a quality guarantee. Set Includes: (2) Flat: 3/16, 1/4-Inch; (2) Phillips: #1, #2 (1) Drywall Bit #2.