Includes: 1 pc 6″ power tool adapter, 1 pc quick change driver handle, 6 pc nylon brushes, 6 pc steel brushes, and 6 pc brass brushes. Sizes: 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 1″. Double injected contoured grip handle provides a secure hold.