This professional ratchet and socket set are made from high quality chrome vanadium steel to ensure a lifetime of useful reliable service for mechanics engineers fitters and anyone who seeks quality tools at a decent price the ratchet has a comfortable ergonomically shaped handle it is also fully reversible and has a guaranteed secure mechanism for securely gripping each and every socket the socket set has 19 pieces including 18 sockets from 8mm to 32mm in the most common sizeslifetime