#637 14 Piece Impact Screwdriver Set Popular attachments included Set includes 5, 6, 8, 10, and 12 mm flat head bits, #1, #2, #3, and #4 Phillips head bits and, 4, 5, 6, and 8 mm hex bits. A great quality product that not only comes with the bits provided but will also fit any 1/2" drive socket. Features Impact driver set Comfort grip for easy use Blow mounted storage case Flat head bits: 5, 6, 8, 10, and 12 Phillips head bits: #1, #2, #3, and #4 Hex bits: 4, 5, 6, and 8 Specifications Case Dimensions: 8.5" x 2.5" x 2.5" Weight: 32.5 oz Items Included One (1) 14 Piece Screwdriver Set One (1) Hard Plastic Case