Blue Dot Precision screw driver set Blue Dot Trading- 16 Piece Precision Screw Driver set- 16 piece tool set, 1 x T4x40mm Torx Screwdriver 16 Piece Versatile Precision Screwdriver Set For Cell Phones, PDAs, MP3s, Computers, Video Game Systems, and More Designed for use in repair of Cell Phones and other electronic devices