A professional quality comprehensive EIGHT piece set of impact adaptors for use on all types of impact tools. Manufactured from hardened Chrome Vanadium Steel (CR-V) for longevity and durability and helps resist abrasion, oxidation and corrosion. Black phosphate finish for further corrosion protection. Each has a spring ball socket retention fitting. Sizes are as follows: 3/8″ (F) to 1/4″ (M) 1/4″ (F) to 3/8″ (M) 3/8″ (F) to 1/2″ (M) 1/2″ (F) to 3/8″ (M) 1/2″ (F) to 3/4″ (M) 3/4″ (F) to 1/2″ (M) 3/4″ (F) to 1″ (M) 1″ (F) to 3/4″ (M) Supplied in a handy clip shut carry case for safe storage and easy transportation.