Main Features:  The head uses imported S2 steel, which has high hardness and high durability.  The handle adopts all-metal design, and the handle jack is a standard 4MM hexagonal size.  The handle jack adopts magnetic absorption, and the head nut can also lock the bit, so that the bit has no gaps, which is convenient for high-precision operation.  The rear end of the handle is designed with a lateral force hole, which can insert a metal extension rod into the lateral force hole to increase the torque operation and facilitate the removal of some special fastening screws.  The metal extension rod is used to lengthen the bit, which is convenient for removing the deep hole screws.  The soft rod can be bent to twists the screw, which is convenient for removing the dead angle screw.     Specification:  -Hexagonal Sleeve: M2.5 M3.0 M3.5 M4.0 M4.5 M5.0 M5.5;  -Inner Hexagon : H0.7 H0.9 H1.3 H1.5 H2.0 H2.5 H3.0 H4.0 H4.5 H5.0 H6.0;  -Slotted Specification: 1.01.52.0 2.5 3.03.5 4.0;  -Cross Specification: 1.01.52.02.53.5;  -Hexagonal Specifications: T2T3T4T5T6T7T8T9T10T15T20;  -V Type: Y0.6 Y2.0 Y2.5;  -Five Stars: Five stars 0.8 Five stars 1.2 Five stars 1.5;  -Square: S0S1 S2;  -U Type: U2.6 U3.0;  -Triangle: 2.03.0;  -Round: 0.8;  -Anti-Cross: Anti-Cross 2.0 (specially used for removing bullet sockets);  -Box color: green yellow black;  -Weight: about 335 grams;  -Size: 250X100X25MM.     Package Contents:  56*Batches;  1*Adapter (6.35MM to 4MM);  1*Metal Extension Rod;  1*Soft Rod;  1*Metal Handle.