The Pro'sKit SD-9808N screwdriver comes with a set of bits. includes a set of 58 elements. Bits of chrome-molybdenum vanadium steel, 28 mm in length. holder for magnetic bits. both double-structured and ergonomic. designed to be lightweight and non-slip (285g/s). Contents and Details Bits 1.0 mm, 1.5 mm, 2.0 mm, 2.5 m, PH000, PH00, PH0, and PH1