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