CR-V steel socket & flex socket with mirror chrome finish, resistant to corrosion. CR-MO steel magnetic impact socket to better hold fasteners inside the socket. Laser etched and high-contrast size markings to ensure permanent socket identification. 6-point flank drive design grips fastener more tightly on the flat sides and prevents rounding off at corners. All tools meet or exceed ANSI performance standards. It comes with 1 year quality warranty. /