Precision made handle with finger control cap. Twenty-six interchangeable hardened bits. 4" (102mm) extension. Plastic storage case. Slotted Bits: 1.5, 2.0, 3.0, 4.0mm Phillips Bits: #000 (1.2mm), #00 (2mm), #0(3mm), #1 (4mm) Hex Bits: .7, .9, 1.3, 1.5, 2.0, 2.5, 3.0,4.0, .05mm Hex Bits: .05.1/16, 5/64, 3/32, 7/64, 1/8,9/64, 5/32"