The Wiha 92191 51-Piece Precision Screwdriver Tray Set is ideal for precision and control. Its CRM-72 tool steel has been through hardened for maximum durability, with vapor hard chromed satin non slip tips and exact fit precision machined tips for accuracy. Its molded-on handle for permanent bond to blade and handles proportioned to blade size ensures optimum torque. The set is backed by the Wiha no hassle guarantee and comes with a tray dimension of 20" x 11.5" x 2".