Premium CR-V SteelMade from drop forged and heat treated chrome vanadium steel (50BV30) with black phosphate finish. Set Includes 13 Star Socket Bits T:1/4" Drive: T8, T10, T15, T20, T25, T27, T30; 3/8" Drive: T40, T45, T47, T50, T55, 1/2" Drive: T60. 12 Female E-Torx Sockets E: 1/4" Drive: E4, E5, E6, E7, E8; 3/8 Drive: E10, E12, E14, E16, E18, E20, 1/2 Drive: E22. S2 Alloy Steel BitHighest Quality Heat Treated S2 Alloy Steel Torx Bits, Drop-Forged to Help Prevent Wear-Outs and Improved Durability and Extra Torque. Laser Marking High-contrast size marking is permanently laser etched and easy to read, even in low light. Service GuaranteeAll MIXPOWER Tools meet or exceed ANSI performance standards. It comes with 1 year quality guarantee.