Forged material, chrome vanadium steel, heat treated. Stamped markings for quick size identification. Suitable for use with hand ratchets or tool bars. Includes: 1/4" bits: E4, E5, E6, E7, E8. 3/8" bits: E10, E11, E12, E14, E16. 1/2" Drill: E18, E20, E22, E24. with an impact resistant molded case. Product Description The Type E Torx star socket set is made of hardened chrome vanadium steel, which makes each socket strong. Set includes 14-piece Torx type E socket set 1 blow molded box