Irwin 3057018 Screwdriver Bit Set, Steel Fastening, 40 PiecesHighlights: Material: Steel Fastening Number Of Pieces: 40 Suitable for use with driving screws Compatible with most impact drivers and drill drivers Includes: 1" Insert Bits: #1 Phillips (2), #2 Phillips (7), #3 Phillips (2), #1 Square Recess (1), #2 Square Recess (5), #3 Square Recess (1), 6 8 Slotted (1), 8 10 Slotted (1), 10 12 Slotted (1) TORX: T10 (1), T15 (1), T20 (1), T25 (1), T27 (1), T30 (1), T40 (1) Hex Head: 3 32" (1), 7 64" (1), 1 8" (1),