DescriptionExcellent for models, miniatures, electronics, computers and more. Set includes tough 3-1/2 inch plastic handle with serrated grip and integral chuck. Steel bit holder shank can be extended to an additional 3 inches for hard-to-reach areas. 25mm-long chrome vanadium bits have hex shanks and include: Phillips 000, 00, 0, 1; Flat-tip Phillips 0, 1; Standard 1, 1.5, 2, 2.5, 3, 4; Torx T5, T6, T7, T8, T9, T10, T15, T20. Packaged in a convenient plastic storage/carrying case with latching lid.