The Bits is made of premium S2 alloy steel for superior hardness and insure longevity.
The sockets is made from drop forged and heat treated advanced chrome vanadium steel for durability and serviceability with mirror chrome plated, And the E-Torx Sockets with manganese phosphate coating.
107PCS bit socket set includs: 1/4", 3/8" and 1/2"drive Torx / extra long Torx / tamper proof Torx/hex / ball end hex SAE & metric bit set.
Each bits head has a unique chamfering design, increases the contact area, not easy to wear,more durable.
Come with a heavy duty blow molded storage case, easy to carry. Meets or exceeds ANSI performance standards. It comes with 1 year quality warranty.