Feature:_x000D_ _x000D_ Made of chrome vanadium steel, overall heat treatment, high hardness and good toughness. _x000D_ The surface of the bit socket is sandblasted, which is not easy to rust and is more beautiful. _x000D_ Widely used in construction industry, manufacturing industry, home equipment repair, auto repair industry, etc. _x000D_ Equipped with a storage box for easy storage and carrying, it is not easy to lose the bit. _x000D_ With extension rod design, which can repair the problematic workpiece in a narrow space where the hand is inconvenient to reach. _x000D_ _x000D_ Specification:_x000D_ Material: Chrome vanadium steel_x000D_ Production process: Overall heat treatment_x000D_ Surface treatment: Abrasive blasting_x000D_ Length: 110mm / 4.3in_x000D_ Square bit socket: 3/8_x000D_ Hex bit socket: 1/8, 3/16, 7/32, 1/4, 9/32, 5/16, 3/8_x000D_ _x000D_ Package list:_x000D_ 7 * Bit socket_x000D_ _x000D_ Note:_x000D_ The actual product color may deviate from the photo due to light._x000D_ There may be a slight deviation in the measurement of product.