Xcelite 99PR 14-Piece Series 99 Multi-Purpose Nutdriver and Screwdriver Assortment Assortment of 14 Xcelite Series 99 nut driver and screwdriver set includes interchangeable blades and a handle for the electronics industry Interchangeable blades for a variety of electronic and repair applications Blades are made from alloy steel for durability, and handle is made from plastic Roll-up plastic-coated canvas case for organized storage and portability 12-month limited warranty