Premium 44pc Ratchet Precision Screwdriver Set - 42 Chrome Vanadium Bits Premium-grade tool set for electronics, computers, cell phones, watch & jewelry repair 42 high-durability Chrome-Vanadium steel bits, complete coverage of styles/sizes (see description) Patented reversible ratchet handle for faster rundown & removal, bit storage in handle Unique bit cartridge system groups bits by style, storage case keeps pieces organized & easy-to-find 3-1/2" extension for extra reach, magnetic bit holder; outstanding value - like 44-tools-in-1