This is a high quality screwdriver set ideal for hobbyists, technicians, mechanics and do-it-yourselfers. Also used by jewelers, watchmakers, instrument makers, subminiature parts assemblers and model makers. There are five different screwdriver blades included in this set: four tempered steel straight blades and one No. 0 cross point blade. The screwdriver bodies are nickel plated with swivel heads. Great for derailleur limit screws, master-cylinder bleed screws and other precision operations. Contains: (1) handle/clamp, (4) flat-blade, (1) crosshead. Come in plastic self-stand case with clear plastic lid. Keep you set organized by using the injection molded plastic case which is included.