Forged chrome-vanadium steel, heat-treated for durability. Stamped markings allow quick and easy size identification. Compatible with hand ratchets or breaker bars. Includes 1/4" Drive: E4, E5, E6, E7, E8. 3/8" Drive: E10, E11, E12, E14, E16. 1/2" Drive: E18, E20, E22, E24. Comes with a blow-molded case. Forged chrome-vanadium steel, heat-treated. Stamped markings allow for quick size identification. Suitable for use with hand ratchets or breaker bars. Includes: 1/4" Dr.: E4, E5, E6, E7, E 8. 3/8" Dr.: E10, E11, E12, E14, E 16. 1/2" Dr.: E18, E20, E22, E 24. Supplied with a blow-molded case. Product Description: The female Torx socket set is made of hardened chrome-vanadium steel to ensure durability and strength for each socket. Package Includes:14-piece Torx E socket set1 x blow-molded case